int main()
{
int t,i,j,k,n,s,m;
scanf("%d",&t);
pii p;
while(t--){
v.clear();
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%d %d",&j,&k);
v.push_back(ii(j,0));
v.push_back(ii(k,1));
}
sort(v.begin(),v.begin()+2*n);
s=0,m=-SENTINEL;
for(i=0;i<2*n;i++){
p=v[i];
if(p.second==0)s+=1;
else s-=1;
m=max(m,s);
}
printf("%d\n",m);
}
return 0;
}
void factor(ll n,int id)
{
for(int i=0;prime[i]<=sqrt(n) and i<SZ(prime);i++)
{
if(n%prime[i]==0)
{
int cnt=0;
while(n%prime[i]==0)
{
cnt++;
n/=prime[i];
}
if(id==2){v.pb(mp(prime[i],cnt));lprime++;}
else if(id==0) {a1[prime[i]]=cnt;aprime++;}
else if(id==1) {b1[prime[i]]=cnt;bprime++;}
}
}
if(n>1)
{
if(id==2){v.pb(mp(n,1));lprime++;}
else if(id==0) {a1[n]=1;aprime++;}
else if(id==1) {b1[n]=1;bprime++;}
}
}
int removeDishes(const vpii &pairs) {
bool removedDish[n];
bool removedPair[pairs.size()];
fill(removedDish, removedDish+n, false);
fill(removedPair, removedPair+pairs.size(), false);
int count = 0;
while (true) {
int pairIndex = findRemovablePair(pairs, removedDish, removedPair);
if (pairIndex < 0) {
return count;
}
removedPair[pairIndex] = true;
removedDish[pairs[pairIndex].first] = true;
removedDish[pairs[pairIndex].second] = true;
count += 2;
}
}
bool findMatch(int v, int* prev, bool* visit, int hSize, const vpii& pairs) {
if (v < 0) {
return true;
}
for (int i = 0; i < hSize; i++) {
if (visit[i] ||
!binary_search(pairs.begin(), pairs.end(), make_pair(i, v))) {
continue;
}
visit[i] = true;
if (findMatch(prev[i], prev, visit, hSize, pairs)) {
prev[i] = v;
return true;
}
}
return false;
}
int findRemovablePair(const vpii &pairs, const bool* removedDish,
const bool* removedPair) {
for (int i = 0; i < pairs.size(); i++) {
if (!removedPair[i] && removableDish(pairs[i].first, removedDish) &&
removableDish(pairs[i].second, removedDish)) {
return i;
}
}
return -1;
}
int generatePairsDfs(vpii &pairs) {
int index = findFirstNonAssignedIndex();
if (index >= 0) {
int result = 0;
for (int i = index+1; i < n; i++) {
if (!assigned[i] && colors[index] == colors[i]) {
assigned[i] = true;
assigned[index] = true;
pairs.push_back(make_pair(index, i));
result = max(result, generatePairsDfs(pairs));
assigned[i] = false;
assigned[index] = false;
pairs.pop_back();
}
}
return result;
} else {
return removeDishes(pairs);
}
}
ll dijkstra(int s, int t){
found.assign(N,0); dist.assign(N,INF); f.assign(N,0); dad.assign(N,pii(-1,2));
dist[s]=0; f[s]=INF;
while(s!=-1){
int best=-1; found[s]=true;
for(int k=0 ; k<N; k++){
if(found[k]) continue;
relax(s,k,cap[s][k]-flow[s][k],cost[s][k],1);
relax(s,k,flow[k][s],-1*cost[k][s],-1);
if(best==-1 || dist[k]<dist[best]) best=k;
}
s=best;
}
for(int k=0 ; k<N ; k++){
pi[k]=min(pi[k]+dist[k],INF);
}
return f[t];
}
void dfs(vvi& res, vi& cur, vpii& count, int idx) {
string ident(idx * 4, ' ');
if (idx == count.size()) {
res.push_back(cur);
return;
}
pii& p = count[idx];
int num = p.first, cnt = p.second;
for (int rep = 0; rep <= cnt; ++rep) {
for (int i = 0; i < rep; ++i) {
cur.push_back(num);
}
dfs(res, cur, count, idx + 1);
for (int i = 0; i < rep; ++i) {
cur.pop_back();
}
}
}
int main()
{
sive();
int cas=0,t;
scanf("%d",&t);
while(t--)
{
scanf("%lld %lld %lld",&a,&b,&l);
v.clear();
mem(a1,0);mem(b1,0);
aprime=0;bprime=0;lprime=0;
factor(a,0);
factor(b,1);
factor(l,2);
ll ans=make();
if(ans==-1) printf("Case %d: impossible\n",++cas);
else printf("Case %d: %d\n",++cas,ans);
}
return 0;
}
int main ()
{
srand (time (0));
//freopen (NAME".in", "r", stdin);
//freopen (NAME".out", "w", stdout);
scanf ("%d %d", &n, &k);
for (int i = 0; i < n; i++)
{
int x;
scanf ("%d", &x);
a.pb (mp (x, i + 1));
}
sort (a.begin (), a.end (), cmp);
int curr = a [n - 1].frs - a [0].frs;
while (curr > 1 && k > 0)
{
a [n - 1].frs--;
a [0].frs++;
ans.pb (mp (a [n - 1].snd, a [0].snd));
k--;
sort (a.begin (), a.end (), cmp);
curr = a [n - 1].frs - a [0].frs;
}
printf ("%d %d\n", curr, (int) ans.size ());
for (int i = 0; i < (int) ans.size (); i++)
printf ("%d %d\n", ans [i].frs, ans [i].snd);
return 0;
}