void bfs_traverse(double road[][MAX_POINT])
{
int visited[MAX_POINT];
int i;
for (i = 1; i < MAX_POINT; i++)
visited[i] = 0;
struct queueLK *hq;
initQueue(hq);
for (i = 1; i < MAX_POINT; i++) {
if (!visited[i]) {
visited[i] = 1;
visit(road, i);
enQueue(hq, i);
while (!emptyQueue(hq)) {
int u = outQueue(hq);
int j;
for (j = 1; j < MAX_POINT; j++) {
if (road[u][j] > 0.0001 && !visited[j]) {
visited[j] = 1;
visit(road, j);
enQueue(hq, j);
}
}
}
}
}
clearQueue(hq);
}
int isPathBfs(Graph g, Vertex v, Vertex w)
{
int isPath = FALSE;
Queue q = newQueue(); // create a new queue
Vertex curV = 0;
int *visited = calloc(g->nV, sizeof(int)); // allocate + init to 0
int i = 0;
assert(visited != NULL);
enQueue(q, v);
visited[v] = TRUE;
while ( !isEmptyQueue(q) ){ // still have vertices to traverse
curV = deQueue(q); // get a vertex from the queue
printf("Visiting: %d.\n", curV);
visited[curV] = TRUE; // mark it as visited
if (curV == w) { isPath = TRUE; }
for (i = 0; i < g->nV; i++){ // find vertices to add to queue
if (g->edges[curV][i] && !visited[i]){ // found a vertex to add
enQueue(q, i); // add it to queue
visited[i] = TRUE; // mark it as visited
}
}
}
free(visited);
deleteQueue(q);
return isPath;
}
int checkStackPairwiseOrder(struct sNode *top) {
struct Queue *q = createQueue();
struct sNode *s = top;
int pairwiseOrdered = 1;
while (!isEmpty(s))
enQueue(q, pop(&s));
while (!queueIsEmpty(q))
push(&s, deQueue(q)->key);
while (!isEmpty(s)) {
int n = pop(&s);
enQueue(q, n);
if (!isEmpty(s)) {
int m = pop(&s);
enQueue(q, m);
if(abs(n - m) != 1) {
pairwiseOrdered = 0;
}
}
}
while (!queueIsEmpty(q))
push(&s, deQueue(q)->key);
return pairwiseOrdered;
}
int breadthFirst(struct node * resgraph[], int from , int to, int nV, int parent[])
{
int i;
int visitList[nV];
struct Queue * pop;
struct node * var;
for(i = 0;i < nV; i++)
{
visitList[i] = 0;
}
visitList[from] = 1;
parent[from] = -1;
enQueue(from);
while(head != NULL)
{
pop = deQueue();
var = resgraph[pop->nodes];
while(var != NULL)
{
if(visitList[var->toNode] == 0 && var->weight > 0)
{
enQueue(var->toNode);
visitList[var->toNode] = 1;
parent[var->toNode] = pop->nodes;
}
var = var->next;
}
}
if(visitList[to] == 1)
return 1;
return 0;
}
int main(void){
Queue_t *q;
Stack_t *stack1 = (Stack_t*)malloc(sizeof(Stack_t));
Stack_t *stack2 = (Stack_t*)malloc(sizeof(Stack_t));
q->basic = stack1;
q->forDequeue = stack2;
puts("//enqueue");
enQueue(q, 1);
enQueue(q, 2);
enQueue(q, 3);
printQueue(q);
puts("//deQueue");
deQueue(q);
deQueue(q);
printQueue(q);
deQueue(q);
printQueue(q);
deQueue(q);
return 0;
}
bool isBipartite(int G[][V], int src)
{
int colorMatrix[V], color, temp, u;
initColorMatrix(colorMatrix, V);
struct Queue* queue = createQueue(V);
color = 1;
colorMatrix[src] = color;
enQueue(queue, src);
while (!isEmpty(queue))
{
temp = deQueue(queue);
// assign alternate color to its neighbor
color = 1 - colorMatrix[temp];
for (u = 0; u < V; ++u)
{
// an edge exists and destination not colored
if (G[temp][u] && colorMatrix[u] == -1)
{
colorMatrix[u] = color;
enQueue(queue, u);
}
else if (G[temp][u] && colorMatrix[u] == colorMatrix[temp])
return false;
}
}
return true;
}
void bfs(struct Graph *graph, int s)
{
int visited[graph->v];
for (int i = 0; i < graph->v; i++)
visited[i] = G_FALSE;
visited[s] = G_TRUE;
struct Queue *queue = newQueue(10);
enQueue(queue, s);
fprintf(stderr, "BFS\n");
while (!isEmpty(queue)) {
int temp = deQueue(queue);
fprintf(stderr, "%d\n", temp);
struct adjListNode *cur = graph->array[temp].head;
while (cur){
if (!visited[cur->dest]) {
visited[cur->dest] = G_TRUE;
enQueue(queue,cur->dest);
}
cur = cur->next;
}
}
return;
}
int main(void){
printf("FIFO: First In First Out\n");
printf("Queue is %s\n", (isEmpty()? "Empty": "Not Empty"));
printf("Queue Size = %d\n", queueSize());
enQueue(1);
enQueue(2);
enQueue(13);
enQueue(6);
printQueue();
printf("Queue Size = %d\n", queueSize());
printf("1st DeQueue = 1 || deQueue Result = %d\n", deQueue());
printf("2nd DeQueue = 2 || deQueue Result = %d\n", deQueue());
printf("Queue Size = %d\n", queueSize());
printQueue();
printf("3rd DeQueue = 13 || deQueue Result = %d\n", deQueue());
printf("4th DeQueue = 6 || deQueue Result = %d\n", deQueue());
printf("Add 6 to the queue\n");
enQueue(6);
printQueue();
printf("Queue Size = %d\n", queueSize());
printf("Queue is %s\n", (isEmpty()? "Empty": "Not Empty"));
return 0;
}
void
start(void)
{
int i;
//exercise 4A
//sys_priority (PRIORITY);
//exercise 7
queue_t frontground = initQueue();
queue_t background = initQueue();
sys_multilevelq (QUEUE);
sys_yield();
for (i = 0; i < RUNCOUNT; i++) {
if (current->queue_name == q_foreground)
{
enQueue (frontground, pid_t current->p_pid);
}
else if (current->queue_name == q_background)
{
enQueue (background, pid_t current->p_pid);
}
else
{
console_printf(cursorpos, 0x100, "error on enqueue");
}
// Write characters to the console, yielding after each one.
*cursorpos++ = PRINTCHAR;
sys_yield();
}
// Yield forever.
//while (1)
//sys_yield();
sys_exit(0);
}
void configure_AccelRange(accelRange range){
mpu_regs->accel_cfg &= ~BITS_FSR;
mpu_regs->accel_cfg |= range;
enQueue(mpuTxQueue, reg.accel_cfg); // enqueue the register number
enQueue(mpuTxQueue, mpu_regs->accel_cfg); // enqueue the new value
mpu_writeRegister(1, reg.accel_cfg, false); // send to i2c interface
}
void test_inserting_elements_equal_to_size_of_queue(){
CircularQueue* cQueue = create(sizeof(int),2);
int element1 = 10;
int element2 = 20;
int res = enQueue(cQueue,&element1);
res = enQueue(cQueue,&element2);
ASSERT(1 == res);
};
void test_inserts_the_element_first_having_higher_priority_float(){
void* pQueue = createPQueue();
float data1 = 10.0f , data2 = 20.0f;
ASSERT(1 == enQueue(pQueue, &data2, 2));
ASSERT(1 == enQueue(pQueue, &data1, 1));
ASSERT(1 == deQueue(pQueue));
ASSERT(1 == deQueue(pQueue));
ASSERT(0 == deQueue(pQueue));
};
void test_to_enqueue_an_int_element_when_queue_is_full(){
int element = 4;
Queue* queue = create(sizeof(int), 2);
enQueue(queue, &element);
enQueue(queue, &element);
ASSERT(0==enQueue(queue, &element));
free(queue->base);
free(queue);
}
void test_to_check_the_behaviour_on_full_capacity(){
int element = 4;
queue = create(sizeof(int), 4);
ASSERT(enQueue(queue, &element));
ASSERT(enQueue(queue, &element));
ASSERT(enQueue(queue, &element));
ASSERT(enQueue(queue, &element));
ASSERT(false==enQueue(queue, &element));
}
void test_to_enter_element_in_queue_when_it_is_full_11(){
Queue* actual = createQueue(2,sizeof(int));
int value[3] = {1,2,3};
int* data = (int*)actual->elements;
enQueue(actual,&value[0]);
enQueue(actual,&value[1]);
ASSERT(0==enQueue(actual,&value[2]));
free(actual);
}
void test_to_dequeue_an_int_element(){
int element = 4;
queue = create(sizeof(int), 3);
ASSERT(enQueue(queue, &element));
ASSERT(enQueue(queue, &element));
deQueue(queue);
deQueue(queue);
ASSERT(1==queue->queueInfo.front);
}
void test_inserts_the_element_first_having_higher_priority_String(){
void* pQueue = createPQueue();
String data1 = "a" , data2 = "b";
ASSERT(1 == enQueue(pQueue, &data2, 2));
ASSERT(1 == enQueue(pQueue, &data1, 1));
ASSERT(1 == deQueue(pQueue));
ASSERT(1 == deQueue(pQueue));
ASSERT(0 == deQueue(pQueue));
};
void test_inserts_the_element_first_having_lower_priority_char(){
void* pQueue = createPQueue();
char data1 = 'a' , data2 = 'b';
ASSERT(1 == enQueue(pQueue, &data1, 1));
ASSERT(1 == enQueue(pQueue, &data2, 2));
ASSERT(1 == deQueue(pQueue));
ASSERT(1 == deQueue(pQueue));
ASSERT(0 == deQueue(pQueue));
};
void test_inserts_the_element_first_having_lower_priority_double(){
void* pQueue = createPQueue();
double data1 = 10.0 , data2 = 20.0;
ASSERT(1 == enQueue(pQueue, &data1, 1));
ASSERT(1 == enQueue(pQueue, &data2, 2));
ASSERT(1 == deQueue(pQueue));
ASSERT(1 == deQueue(pQueue));
ASSERT(0 == deQueue(pQueue));
};
void mpu_init(void){
mpu_setup_s *startup_config;
boolean is_Started;
// allocate memory and set to zero
mpu_regs = malloc(sizeof *mpu_regs);
if(!mpu_regs){
while(1);
}
/* Configure mpu_regs to be a copy of onboard registers */
// mpu actually starts up with two non-zero registers
mpu_regs->who_am_i = MPU_I2C_ADDRESS; // initialized with known address
mpu_regs->pwr_mgmt_1 = BIT_SLEEP; // starts in sleep mode
/* End configure of mpu_regs */
NVIC_SetPriority (EXTI9_5_IRQn, 0x07); /* set priority to lower than i2c */
NVIC_DisableIRQ(EXTI9_5_IRQn); /* we don't want to interrupt during setup */
/* Check to see if MPU is already loaded (from pre-CPU reset) */
is_Started = mpu_isInitialized();
// restart device
enQueue(mpuTxQueue, reg.pwr_mgmt_1); // enqueue the register number
enQueue(mpuTxQueue, BIT_RESET); // enqueue the new value
mpu_writeRegister(1, reg.pwr_mgmt_1, false); // send to i2c interface
Delay(1000);// wait for reset
// wakeup device on restart
mpu_regs->pwr_mgmt_1 &= MPU_WAKE_UP;
enQueue(mpuTxQueue, reg.pwr_mgmt_1); // enqueue the register number
enQueue(mpuTxQueue, mpu_regs->pwr_mgmt_1); // enqueue the new value
mpu_writeRegister(1, reg.pwr_mgmt_1, false); // send to i2c interface
Delay(500);// wait for wakeup
mpu_readRegister(1, reg.pwr_mgmt_1);
while(queue_isEmpty(mpuRxQueue)){ }
display_Int(deQueue(mpuRxQueue), 0, 0, true);
/* Once device is on and awake, set it to default config */
startup_config = malloc(sizeof *startup_config);
startup_config->rate_div = STARTUP_RATE_DIV;
startup_config->lpf = STARTUP_LPF;
startup_config->user_ctrl = STARTUP_USERCTRL;
startup_config->accel_cfg = STARTUP_ACCELCFG;
startup_config->fifo_en = STARTUP_FIFOEN;
startup_config->gyro_cfg = STARTUP_GYROCFG;
startup_config->int_enable = STARTUP_INTNENABLE;
startup_config->int_pin_cfg = STARTUP_INTPINCFG;
configure_Mpu(startup_config); /* call the function to write values */
free(startup_config); /* release memory */
//NVIC_ClearPendingIRQ(EXTI9_5_IRQn); /* clear any initial interrupts */
NVIC_EnableIRQ(EXTI9_5_IRQn); /* turn interrupts back on */
}
void main(){
sQueue q;
init(&q);
enQueue(&q,5);
deQueue(&q);
enQueue(&q,71);
deQueue(&q);
enQueue(&q,72);
deQueue(&q);
enQueue(&q,73);
enQueue(&q,74);
deQueue(&q);
enQueue(&q,75);
enQueue(&q,76);
enQueue(&q,77);
deQueue(&q);
enQueue(&q,78);
deQueue(&q);
deQueue(&q);
deQueue(&q);
deQueue(&q);
deQueue(&q);
}
void test_to_delete_string_element_from_Queue_14(){
Queue* actual = createQueue(sizeof(String),5);
String result;
String value = "3.000000";
String value1 = "4.000000";
void* data;
enQueue(actual, &value);
enQueue(actual, &value1);
strcpy(result,*(String*)deQueue(actual));
ASSERT(strcmp(result,"3.000000"));
ASSERT(actual->rear == 0);
free(actual);
}
void test_deleting_an_element_from_the_queue(){
int exp_arr[] = {10,20,0};
CircularQueue expected = {exp_arr,1,1,3,sizeof(int)};
CircularQueue* cQueue = create(sizeof(int),3);
int element1 = 10;
int element2 = 20;
int* firstElement;
int res = enQueue(cQueue,&element1);
res = enQueue(cQueue,&element2);
firstElement = deQueue(cQueue);
ASSERT(10 == *firstElement);
ASSERT(compareQueue(cQueue,&expected));
};
void test_to_dequeue_an_float_element(){
float element = 2.6f;
float element2 = 3.6f;
void *dequeuedElement;
Queue* queue = create(sizeof(float), 3);
enQueue(queue, &element);
enQueue(queue, &element2);
dequeuedElement = deQueue(queue);
ASSERT(2.6f==*(float*)dequeuedElement);
ASSERT(3.6f==((float*)queue->base)[0]);
ASSERT(0==queue->queueInfo.rear);
free(queue->base);
free(queue);
}
void test_to_dequeue_an_int_element(){
int element = 2;
int element2 = 3;
void *dequeuedElement;
Queue* queue = create(sizeof(int), 3);
enQueue(queue, &element);
enQueue(queue, &element2);
dequeuedElement = deQueue(queue);
ASSERT(2==*(int*)dequeuedElement);
ASSERT(3==((int*)queue->base)[0]);
ASSERT(0==queue->queueInfo.rear);
free(queue->base);
free(queue);
}
void test_to_delete_float_element_from_Queue_13(){
Queue* actual = createQueue(sizeof(float),3);
void* result;
float value1 = 3.0;
float value2 = 4.0;
float data;
enQueue(actual, &value1);
enQueue(actual, &value2);
result = (float*)deQueue(actual);
data = *(float*)actual->elements;
ASSERT(*(float*)result == 3.0);
ASSERT(actual->rear == 0);
free(actual);
}
Graph shortestPath(Graph g, Vertex v)
{
Graph mst = newGraph(g->nV); // create a new mst graph
Queue q = newQueue(); // create a new queue
int *visitedVertices = malloc(sizeof(Vertex) * g->nV);
int *dist = malloc(sizeof(int) * g->nV); // create the distance array
int *pred = malloc(sizeof(int) * g->nV); // create the predecessor array, stores vertices passed through
int total = 0, i = 0;
Vertex curV = 0, w = 0;
assert(visitedVertices != NULL && dist != NULL && pred != NULL);
// clear all the memory blocks
setArray(visitedVertices, UNVISITED, g->nV);
setArray(dist, INF, g->nV);
setArray(pred, -1, g->nV);
visitedVertices[v] = VISITED; // mark the starting vertex as visited
dist[v] = 0;
enQueue(q, v); // add the starting vertex to the queue
while ( !isEmptyQueue(q) ){
curV = deQueue(q); // remvoe first element from queue
for (w = 0; w < getnV(g); w++){
if (g->wt[curV][w] == NO_WEIGHT) continue;
if (dist[curV] + g->wt[curV][w] < dist[w]){ // edge relaxation
dist[w] = dist[curV] + g->wt[curV][w];
pred[w] = curV;
enQueue(q,w);
}
}
}
// add the appropriate edges
for (i = 0; i < g->nV; i++){
if (pred[i] != NOT_ASSIGNED){
addEdge(mst, pred[i], i);
total += dist[i];
}
}
deleteQueue(q);
free(dist);
free(pred);
printf("Total = %d.\n", total);
return mst;
}
void test_dequeue_string_element_at_front_of_queue(){
void* element;
String data[]={"sayali","shital","Samiksha"};
queue = create(sizeof(String),5);
enQueue(queue,&data[0]);
enQueue(queue,&data[1]);
enQueue(queue,&data[2]);
ASSERT(queue->queueInfo.rear == 2);
ASSERT(queue->queueInfo.front == -1);
element = deQueue(queue);
ASSERT(!strcmp(*(String*)element , "sayali"));
ASSERT(queue->queueInfo.rear == 2);
ASSERT(queue->queueInfo.front == 0);
}
void test_dequeue_float_element_at_front_of_queue(){
void* element;
float data[]={2.0f,3.0f,4.0f};
queue = create(sizeof(float),5);
enQueue(queue,&data[0]);
enQueue(queue,&data[1]);
enQueue(queue,&data[2]);
ASSERT(queue->queueInfo.rear == 2);
ASSERT(queue->queueInfo.front == -1);
element = deQueue(queue);
ASSERT(*(float*)element == 2.0f);
ASSERT(queue->queueInfo.rear == 2);
ASSERT(queue->queueInfo.front == 0);
}
void test_dequeue_int_element_at_front_of_queue(){
void* element;
int data[]={2,3,4};
queue = create(sizeof(int),5);
enQueue(queue,&data[0]);
enQueue(queue,&data[1]);
enQueue(queue,&data[2]);
ASSERT(queue->queueInfo.rear == 2);
ASSERT(queue->queueInfo.front == -1);
element = deQueue(queue);
ASSERT(*(int*)element == 2.0f);
ASSERT(queue->queueInfo.rear == 2);
ASSERT(queue->queueInfo.front == 0);
}