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  1.  
  2. #include<stdio.h>
  3. #include<stdlib.h>
  4. #include<time.h>
  5. int check_heap(int a[], int n);
  6. void insert(int val, int a[], int *n);
  7. int deletemin(int a[],int *n);
  8.  
  9. int main(void) {
  10.   int a[12] = {1,13,71,14,15,80,91,24,60,63};
  11.   int n;
  12.   int i,j;
  13.   int b,c;
  14.  
  15.   srandom(time(NULL));
  16.  
  17.   b = random() % 100 + 1;
  18.   n = 10;
  19.   insert(b, a, &n);
  20.  
  21.  
  22.   c = random() % 100 + 1;
  23.   n = 11;
  24. insert(c, a, &n);
  25.  
  26.   printf("%d\n", check_heap(a, 12));
  27.  
  28.  
  29.   for(i = 0; i < 12; i++){
  30.     printf("%3d",a[i]);
  31.  
  32.   }
  33.  
  34.  
  35.   deletemin(a, &n);
  36.   for(j = 0; j < 11; j++){
  37.  
  38.     printf("%3d",a[j]);
  39.  
  40.     }
  41.  
  42.   return 0;
  43. }
  44.  
  45. int check_heap(int a[], int n) {
  46.   int i;
  47.   int m;
  48.   m = (n - 1) / 2;
  49.   for(i = 0; i < m; i++)
  50.     {
  51.       if(a[i] >= a[i * 2 + 1])
  52. 	{
  53. 	  return 0;
  54. 	}
  55.       if(a[i] >= a[i * 2 + 2]){
  56. 	return 0;
  57.       }
  58.     }
  59.  
  60.  
  61.   if(n % 2 == 0){
  62.  
  63.     if(a[(n - 1)/2] > a[n - 1]){
  64.  
  65.       return 0;
  66.     }
  67.   }
  68.   return 1;
  69.  
  70. }
  71.  
  72. void insert(int val, int a[], int *n) {
  73.  
  74.   int temp;
  75.   int i;
  76.  
  77.   a[*n] = val;
  78.   i = *n;
  79.  
  80.   while( 0 < i){
  81.  
  82.     if(a[(i-1)/2] <= a[i])
  83.       {
  84. 	break;
  85.       }
  86.  
  87.     temp =  a[(i-1) / 2];
  88.     a[(i-1) / 2] = a[i];
  89.     a[i] =  temp;
  90.     i = (i - 1)/2;
  91.  
  92.  
  93.   }
  94.  
  95. }
  96.  
  97. int deletemin(int a[],int *n){
  98.  
  99.   int b;
  100.   int temp;  
  101. int i,j,k;
  102.   i = 0;
  103.   b = a[0];
  104.   while(a[i] > 0)
  105.     {
  106.  
  107.       k = a[2*i+1] - a[2*i+2];
  108.       if(k < 0){
  109.   temp =  a[2*i+1];
  110.     a[2*i+1] = a[i];
  111.     a[i] =  temp;
  112.     i = 2*i+1;
  113.  
  114.  
  115. 	}
  116. 	if(k > 0)
  117. 	  {
  118.  
  119.   temp =  a[2*i+2];
  120.     a[2*i+2] = a[i];
  121.     a[i] =  temp;
  122.     i = 2*i+2;
  123.  
  124.  
  125. 	  }
  126.  
  127.  
  128.  
  129.     }
  130.  
  131.  
  132.  
  133.   return b;
  134. }
  135.  
Time limit exceeded #stdin #stdout 5s 1676KB
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https://ideone.com/ckedm
language:
C (gcc 8.3)
created:
11 years ago
visibility:
public

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