/**
Returns dvector where each element contains the sum total of each row
in matrix.
\param matrix dmatrix
*/
dvector rowsum(const dmatrix& matrix)
{
int min = matrix.rowmin();
int max = matrix.rowmax();
dvector sums(min, max);
for (int i = min; i <= max; ++i)
{
sums(i) = sum(matrix(i));
}
return sums;
}
vector<T>
rowSums(matrix<T> &data)
{
unsigned int rows = data.size1();
vector<T> sums(rows);
for(unsigned int i=0; i<rows; i++)
{
matrix_row<matrix<T> > mc (data, i);
T s = T(sum(mc));
sums(i) = s;
}
return sums;
}
vector<T>
colSums(matrix<T> &data)
{
unsigned int cols = data.size2();
ublas::vector<T> sums(cols);
for(unsigned int i=0; i<cols; i++)
{
matrix_column<ublas::matrix<T> > mc (data, i);
T s = T(sum(mc));
sums(i) = s;
}
return sums;
}
/**
* @param nums: A list of integers
* @param k: An integer denote to find k non-overlapping subarrays
* @return: An integer denote the sum of max k non-overlapping subarrays
*/
int maxSubArray(vector<int> nums, int k) {
const int n = nums.size();
// sums[x][y] means the max sum in range [0, x - 1] with y non-overlapping subarrays
vector<vector<int>> sums(n + 1, vector<int>(k + 1, INT_MIN));
for (int i = 0; i <= n; ++i) {
sums[i][0] = 0;
}
for (int i = 1; i <= n; ++i) {
for (int j = 1; j <= min(i, k); ++j) {
sums[i][j] = sums[i - 1][j];
int sum = 0, max_sum = INT_MIN;
for (int p = i; p > j - 1; --p) {
sum += nums[p - 1];
max_sum = max(max_sum, sum);
sum = max(0, sum);
// max sum in range[0, i - 1] with j subarrays equals to
// max sum in max(range [0, p - 2] with j - 1 subarrys plus
// max sum in range [p - 1, i - 1] with 1 subarray
sums[i][j] = max(sums[i][j], sums[p - 1][j - 1] + max_sum);
}
}
}
return sums[n][k];
}
// not fully ac
vector<int> subarraySumClosest(vector<int> nums){
// write your code here
int n=nums.size();
//sums[i] records sum of [0..i)
vector<int> sums(n+1,0);
sums[0]=0;
vector<int> res;
unordered_map<int,int> mm;
for(int i=1; i<=n; i++){
sums[i]=sums[i-1]+nums[i-1];
mm[sums[i]]=i;
}
sort(sums.begin(),sums.end());
int minidx=0;
int maxidx=0;
int dist=INT_MAX;
for(int i=1;i<sums.size(); i++){
if(sums[i]-sums[i-1]<dist){
dist=sums[i]-sums[i-1];
minidx=min(mm[sums[i]],mm[sums[i-1]]);
maxidx=max(mm[sums[i]],mm[sums[i-1]])-1;
}
}
res.push_back(minidx);
res.push_back(maxidx);
return res;
}
std::vector<double> Bagger::distributionForInstance(InstancePtr instance){
std::vector<double> sums(m_data->getNumClassValues(),0), newProbs;
for(int i = 0; i < m_NumIterations; i++){
if(m_data->getClassFormat() == Attribute::IF_NUMERIC) {
sums[0] += m_trees[i]->classifyInstance(instance);
}
else{
newProbs = m_trees[i]->distributionForInstance(instance);
for (int j = 0; j < newProbs.size(); j++)
sums[j] += newProbs[j];
}
}
if(m_data->getClassFormat() == Attribute::IF_NUMERIC) {
sums[0] /= (double) m_NumIterations;
return sums;
}
else if(RandomTree::sum(sums) < 1e-6) {
return sums;
}
else{
RandomTree::normalize(sums);
return sums;
}
}
/**
* @param nums: A list of integers
* @return: A list of integers includes the index of the first number
* and the index of the last number
*/
vector<int> subarraySumClosest(vector<int> nums){
int len = nums.size();
if (len == 0) return{ -1, -1 };
if (len == 1) return{ 0, 0 };
vector<pair<int, int>> sums(len + 1);
sums[0] = make_pair(0, -1);
int sum = 0;
for (int i = 0; i < len; i++)
{
sum += nums[i];
sums[i + 1] = make_pair(sum, i);
}
sort(sums.begin(), sums.end());
int minDiff = INT_MAX;
int start = -1;
int end = -1;
for (int i = 1; i < sums.size(); i++)
{
int diff = abs(sums[i].first - sums[i - 1].first);
if (diff < minDiff)
{
minDiff = diff;
start = min(sums[i].second, sums[i - 1].second) + 1;
end = max(sums[i].second, sums[i - 1].second);
}
}
return { start, end };
}
void LAP_SQLModel::recalculate()
{
QVector < double > sums(_column_count,0);
for (int j=0; j< _data.size()-1; ++j)
for (int i=1; i< _column_count; ++i)
if (_isCalc[i])
{
if (_neg == 0) sums[i] += _data[j][i].toDouble();
else
{
if (_data[j][i].toDouble()>=0 && _neg == 1)
sums[i] += _data[j][i].toDouble();
if (_data[j][i].toDouble()<0 && _neg == 2)
sums[i] += _data[j][i].toDouble();
}
}
_data[_row_count-1][0]="";
for (int i=1; i< _column_count; ++i)
{
if (_isCalc[i])
_data[_row_count-1][i] = sums[i];
else
_data[_row_count -1][i] = "";
}
}
int minimumTotal(vector<vector<int> > &triangle) {
// Start typing your C/C++ solution below
// DO NOT write int main() function
size_t level = triangle.size();
size_t num = (1 + level) * level / 2;
vector<int> sums(num);
size_t index = (level - 1) * level / 2;
for (size_t c = 0; c < level; ++c)
{
sums[index + c] = triangle[level - 1][c];
}
for (int r = level - 2; r >= 0; --r)
{
index = (r + 1) * r / 2;
for (size_t c = 0; c <= r; ++c)
{
sums[index + c] = triangle[r][c];
size_t indexL = (r + 2) * (r + 1) / 2 + c;
size_t indexR = (r + 2) * (r + 1) / 2 + c + 1;
sums[index + c] += std::min(sums[indexL], sums[indexR]);
}
}
return sums[0];
}
/**
* @param nums: A list of integers
* @param k: An integer denote to find k non-overlapping subarrays
* @return: An integer denote the sum of max k non-overlapping subarrays
*/
int maxSubArray(vector<int> nums, int k) {
const int n = nums.size();
// sums[x][y] means the max sum in range [0, x - 1] with k non-overlapping subarrays
vector<vector<int>> sums(n + 1, vector<int>(k + 1, INT_MIN));
for (int i = 0; i <= n; ++i) {
sums[i][0] = 0;
}
for (int i = 1; i <= n; ++i) {
for (int j = 1; j <= min(i, k); ++j) {
sums[i][j] = sums[i - 1][j];
int max_sum_from_p = 0;
for (int p = i; p > j - 1; --p) {
max_sum_from_p = max(0, max_sum_from_p) + nums[p - 1];
// max sum in range[0, i - 1] with j subarrays equals to
// max sum in max(range [0, p - 2] with j - 1 subarrys plus
// max sum of the subarray which starts from p - 1
sums[i][j] = max(sums[i][j], sums[p - 1][j - 1] + max_sum_from_p);
}
}
}
return sums[n][k];
}
/**
* @param nums: A list of integers
* @return: A list of integers includes the index of the first number
* and the index of the last number
*/
vector<int> subarraySumClosest(vector<int> nums){
// write your code here
int size = nums.size();
vector<int> result;
if (nums.empty()) {
return result;
}
vector<pair<int, int>> sums(size+1);
int i;
for (i=0; i<size; i++) {
sums[i+1].first = sums[i].first + nums[i];
sums[i+1].second = i+1;
}
sort(sums.begin(), sums.end());
int min_diff = INT_MAX;
int sum_diff;
int index=1;
for (i=1; i<size+1; i++) {
sum_diff = abs(sums[i].first - sums[i-1].first);
if (sum_diff < min_diff) {
min_diff = sum_diff;
index = i;
}
}
int left_idx = min(sums[index].second, sums[index-1].second);
int right_idx = max(sums[index].second, sums[index-1].second)-1;
result.push_back(left_idx);
result.push_back(right_idx);
return result;
}
void Codebook::rescue(vector<int>& temp, cv::Mat& data, int codebook_size)
{
assert(temp.size() == data.rows);
vector< vector<float> > sums(codebook_size);
vector<int> count(codebook_size);
for (int r=0; r<temp.size(); r++)
{
int cl = temp[r];
count.at(cl)++;
if (sums[cl].size()==0)
sums[cl].resize(data.cols,0);
for (int c=0; c<data.cols; c++)
{
sums[cl][c] += data.at<float>(r,c);
}
}
cout << "compiling codebook" << endl;
for (int cl=0; cl<codebook_size; cl++)
{
assert(count[cl]>0);
vector<double> toAdd;
for (int c=0; c<data.cols; c++)
{
assert(sums[cl][c]>=0);
toAdd.push_back(sums[cl][c]/count[cl]);
}
codebook.push_back(toAdd);
}
}
int maxSumSubmatrix(vector<vector<int>>& matrix, int k) {
if (matrix.empty()) {
return 0;
}
const int m = min(matrix.size(), matrix[0].size());
const int n = max(matrix.size(), matrix[0].size());
int result = numeric_limits<int>::min();
for (int i = 0; i < m; ++i) {
vector<int> sums(n, 0);
for (int j = i; j < m; ++j) {
for (int l = 0; l < n; ++l) {
sums[l] += (m == matrix.size()) ? matrix[j][l] : matrix[l][j];
}
// Find the max subarray no more than K.
set<int> accu_sum_set;
accu_sum_set.emplace(0);
int accu_sum = 0;
for (int sum : sums) {
accu_sum += sum;
auto it = accu_sum_set.lower_bound(accu_sum - k);
if (it != accu_sum_set.end()) {
result = max(result, accu_sum - *it);
}
accu_sum_set.emplace(accu_sum);
}
}
}
return result;
}
void LAP_SQLModel::fetchMore ( const QModelIndex &)
{
QVector <QVariant> _temp(header.count());
int lump = 0;
do
{
_temp.clear();
for (int i=0; i< header.count(); ++i)
_temp.push_back(_query.value(i));
_data.push_back(_temp);
lump++;
}while ( lump < max_lump && _query.next() );
_isall = _query.next();
_row_count = _data.size();
//maybe we need to recalculate sums?
if (!_isall && this->_totals)
{
if (_data.size()>0)
{
QVector < double > sums(_column_count,0);
for (int j=0; j< _data.size(); ++j)
for (int i=1; i< _column_count; ++i)
if (_isCalc[i])
{
if (!_neg) sums[i] += _data[j][i].toDouble();
else
{
if (_data[j][i].toDouble()>=0 && _neg == 1)
sums[i] += _data[j][i].toDouble();
if (_data[j][i].toDouble()<0 && _neg == 2)
sums[i] += _data[j][i].toDouble();
}
}
_temp[0]="";
for (int i=1; i< _column_count; ++i)
{
if (_isCalc[i])
_temp[i] = sums[i];
else
_temp[i] = "";
}
_data.push_back(_temp);
_row_count++;
}
}
// if (_grid->isAuto)
emit layoutChanged();
//_grid->resizeRowsToContents();
}
double ABCDCount::GetTotalCount() const{
std::vector<double> sums(4);
sums.at(0)=Math::Sum(a_.begin(), a_.begin()+GetNumberOfBins());
sums.at(1)=Math::Sum(b_.begin(), b_.begin()+GetNumberOfBins());
sums.at(2)=Math::Sum(c_.begin(), c_.begin()+GetNumberOfBins());
sums.at(3)=Math::Sum(d_.begin(), d_.begin()+GetNumberOfBins());
return Math::Sum(sums.begin(), sums.end());
}
int countRangeSum(vector<int>& nums, int lower, int upper) {
vector<long long> sums(nums.size()+1);
sums[0]=0;
for (int i=0; i<nums.size(); ++i)
sums[i+1] = sums[i]+nums[i];
tmp=sums;
return mergeSort(sums, lower, upper, 0, sums.size()-1);
}
NumericVector colSums(NumericMatrix x) {
int n = x.ncol();
NumericVector sums(n, 0.0);
for (int c = 0; c < n; ++c)
sums[c] += sum(x(_, c));
return sums;
}
/**
Returns dvector where each element contains the sum total of each column
in matrix.
\param matrix dmatrix
*/
dvector colsum(const dmatrix& matrix)
{
int cmin = matrix.colmin();
int cmax = matrix.colmax();
int rmin = matrix.rowmin();
int rmax = matrix.rowmax();
dvector sums(cmin, cmax);
sums.initialize();
for (int j=cmin; j<=cmax; ++j)
{
for (int i=rmin; i<=rmax; ++i)
{
sums(j) += matrix(i, j);
}
}
return sums;
}
NumericVector rowSums(NumericMatrix x) {
int n = x.nrow();
NumericVector sums(n, 0.0);
for (int r = 0; r < n; ++r)
sums[r] += sum(x(r, _));
return sums;
}
living *grass::next(world w)
{
int sum[STATES];
sums(w, sum);
if (sum[GRASS] > sum[RABBIT]) // eat grass
return (new grass(row, column));
else
return (new empty(row, column));
}
TEUCHOS_UNIT_TEST_TEMPLATE_1_DECL( DefaultSpmdVectorSpace_Parallel, emptyProcAssignSumMultiVec,
Scalar )
{
const Ordinal localDim = g_localDim;
PRINT_VAR(localDim);
const RCP<const DefaultSpmdVectorSpace<Scalar> > vs = createZeroEleProcVS<Scalar>(localDim);
const Ordinal numCols = 3;
PRINT_VAR(numCols);
const RCP<MultiVectorBase<Scalar> > mv = createMembers<Scalar>(vs, numCols);
const Scalar val = 1.5;
PRINT_VAR(val);
ECHO(assign(mv.ptr(), as<Scalar>(val)));
Teuchos::Array<Scalar> sums(numCols);
Thyra::sums<Scalar>(*mv, sums());
for (int j = 0; j < numCols; ++j) {
PRINT_VAR(j);
TEST_EQUALITY(sums[j],
as<Scalar>(localDim*(vs->getComm()->getSize()-1))*val);
}
}
void DataMangler::AverageValues(XYGraph *graph) {
double pvx = pow(0.1, m_di[0]->GetPrec());
int count;
double slice;
double dif = graph->m_dmax[0] - graph->m_dmin[0];
if (dif < pvx) {
count = 1;
slice = pvx;
} else {
count = 0;
while (dif / count > pvx && count < 20)
++count;
slice = dif / count;
}
std::deque<double> sums(count, 0);
std::deque<int> counts(count, 0);
std::deque< std::vector<DTime> > ptimes(count);
for (size_t i = 0; i < graph->m_points_values.size(); ++i) {
double& x = graph->m_points_values.at(i).first[0];
double& y = graph->m_points_values.at(i).first[1];
std::vector<DTime> × = graph->m_points_values.at(i).second;
int idx = int((x - graph->m_dmin[0] - slice / 2) * count / dif);
if (idx < 0)
idx = 0;
if (idx >= count)
idx = count - 1;
counts[idx]++;
sums[idx] += y;
for(unsigned int j = 0; j < times.size(); j++)
ptimes[idx].push_back(times[j]);
}
graph->m_points_values.clear();
for (int i = 0; i < count; ++i) {
int c = counts[i];
if (c == 0)
continue;
std::vector<double> xy(2);
xy[0] = graph->m_dmin[0] + dif * i / count;
xy[1] = sums[i] / c;
graph->m_points_values.push_back(XYPoint(xy, ptimes[i]));
}
}
void ConfusionMatrix::normalize() {
if (normalized) {
throw std::runtime_error("confusion matrix is already normalized");
}
cuv::ndarray<double, cuv::host_memory_space> sums(getNumClasses());
const unsigned int numClasses = getNumClasses();
for (unsigned int label = 0; label < numClasses; label++) {
sums(label) = 0.0;
for (unsigned int prediction = 0; prediction < numClasses; prediction++) {
double value = static_cast<double>(data(label, prediction));
sums(label) += value;
}
}
for (unsigned int label = 0; label < numClasses; label++) {
if (sums(label) == 0.0)
continue;
for (unsigned int prediction = 0; prediction < numClasses; prediction++) {
data(label, prediction) /= sums(label);
}
}
#ifndef NDEBUG
for (unsigned int label = 0; label < numClasses; label++) {
double sum = 0.0;
for (unsigned int prediction = 0; prediction < numClasses; prediction++) {
double v = static_cast<double>(data(label, prediction));
assert(v >= 0.0 && v <= 1.0);
sum += v;
}
assert(sum == 0.0 || abs(1.0 - sum) < 1e-6);
}
#endif
normalized = true;
}
living *fox::next(world w)
{
int sum[STATES];
sums(w, sum);
if (sum[FOX] > 5) // too many foxes
return (new empty(row, column));
else if (age > DFOX) // fox too old
return (new empty(row, column));
else
return (new fox(row, column, age+1));
}
living *rabbit::next(world w)
{
int sum[STATES];
sums(w, sum);
if (sum[FOX] >= sum[RABBIT]) // eat rabbits
return (new empty(row, column));
else if (age > DRAB) // rabbit too old
return (new empty(row, column));
else
return (new rabbit(row, column, age+1));
}
/*
================================
prefixSums
Calculate prefix sums for a given array.
================================
*/
std::vector<int> prefixSums(std::vector<int> array)
{
int n = array.size();
std::vector<int> sums(n + 1, 0);
for (int i = 1; i < n + 1; ++i)
{
sums[i] = sums[i - 1] + array[i - 1];
}
return sums;
}
vector<int> sumOfDistancesInTree(int N, vector<vector<int>>& edges) {
vector<vector<int>> graph(N, vector<int>());
for (auto edge : edges) {
graph[edge[0]].push_back(edge[1]);
graph[edge[1]].push_back(edge[0]);
}
vector<int> sums(N), counts(N, 1);
dfs1(0, -1, graph, sums, counts);
dfs2(0, -1, graph, sums, counts);
return sums;
}
// Pass 2 computes CSR entries for matrix C = A*B using the
// row pointer Cp[] computed in Pass 1.
void csr_matmat_pass2(const CSRMatrix &A, const CSRMatrix &B, CSRMatrix &C)
{
std::vector<int> next(A.col_, -1);
vec_basic sums(A.col_, zero);
unsigned nnz = 0;
C.p_[0] = 0;
for (unsigned i = 0; i < A.row_; i++) {
int head = -2;
unsigned length = 0;
unsigned jj_start = A.p_[i];
unsigned jj_end = A.p_[i + 1];
for (unsigned jj = jj_start; jj < jj_end; jj++) {
unsigned j = A.j_[jj];
RCP<const Basic> v = A.x_[jj];
unsigned kk_start = B.p_[j];
unsigned kk_end = B.p_[j + 1];
for (unsigned kk = kk_start; kk < kk_end; kk++) {
unsigned k = B.j_[kk];
sums[k] = add(sums[k], mul(v, B.x_[kk]));
if (next[k] == -1) {
next[k] = head;
head = k;
length++;
}
}
}
for (unsigned jj = 0; jj < length; jj++) {
if (neq(*sums[head], *zero)) {
C.j_[nnz] = head;
C.x_[nnz] = sums[head];
nnz++;
}
unsigned temp = head;
head = next[head];
next[temp] = -1; // clear arrays
sums[temp] = zero;
}
C.p_[i + 1] = nnz;
}
}
void SmoothValues( std::vector< PlyValueVertex< Real > >& vertices , const std::vector< std::vector< int > >& polygons , Real min , Real max )
{
std::vector< int > count( vertices.size() );
std::vector< Real > sums( vertices.size() , 0 );
for( int i=0 ; i<polygons.size() ; i++ ) for( int j=0 ; j<polygons[i].size() ; j++ )
{
int j1 = j , j2 = (j+1)%polygons[i].size();
int v1 = polygons[i][j1] , v2 = polygons[i][j2];
if( vertices[v1].value>min && vertices[v1].value<max ) count[v1]++ , sums[v1] += vertices[v2].value;
if( vertices[v2].value>min && vertices[v2].value<max ) count[v2]++ , sums[v2] += vertices[v1].value;
}
for( int i=0 ; i<vertices.size() ; i++ ) vertices[i].value = ( sums[i] + vertices[i].value ) / ( count[i] + 1 );
}
living *empty::next(world w)
{
int sum[STATES];
sums(w, sum);
if (sum[FOX] > 1)
return (new fox(row, column));
else if (sum[RABBIT] > 1) // fox too old
return (new rabbit(row, column));
else if (sum[GRASS])
return (new grass(row, column));
else
return (new empty(row, column));
}