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- #include <stdio.h>
- #include <stdlib.h>
- int main()
- {
- int n;
- scanf("%d", &n);
- int k[n];
- int r[n];
- int i, j, ind_size;
- int key;
- int kindex[3];
- int pindex[3];
- for (i = 0; i < n; i++)
- {
- printf("%2d. r[%2d]= ", i, i);
- scanf("%d", &r[i]);
- printf("k[%2d]= ", i);
- scanf("%d", &k[i]);
- }
- for(i=0, j=0;i<n;i=i+4)
- {
- kindex[j] = k[i];
- pindex[j] = i;
- j++;
- }
- ind_size = j;
- pindex[j] = n;
- printf("Введите key: ");
- scanf("%d",&key);
- for(j=0; j<ind_size; j++)
- {
- if(key < kindex[j])
- break;
- }
- if(j==0) i=0;
- else
- i = pindex[j-1];
- for(i = i; i<pindex[j];i++)
- {
- if(k[i]==key)
- printf("key= %d. индекс = %d", k[i],i);
- }
- getchar();
- return 0;
- }
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