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- #include<stdio.h>
- int main()
- {
- int n;
- scanf("%d", &n);
- int a[n], i, j, idx[n];
- for(i = 0; i < n; i++) scanf("%d", &a[i]);
- for(i = 0; i < n; i++) idx[i] = i + 1;
- /*printf("Index: ");
- for(i = 0; i < n; i++) printf("%d ", idx[i]);
- printf("\n");*/
- for(i = 1; i < n; i++)
- {
- for(j = 0; j < n - i; j++)
- {
- if(a[j] > a[j+1])
- {
- int t = a[j];
- a[j] = a[j+1];
- a[j+1] = t;
- int ix = idx[j];
- idx[j] = idx[j+1];
- idx[j+1] = ix;
- }
- }
- }
- /*printf("Index: ");
- for(i = 0; i < n; i++) printf("%d ", idx[i]);
- printf("\na");
- for(i = 0; i < n; i++) printf("%d ", a[i]);
- printf("\n");*/
- for(i = 0, j = n - 1; i < n / 2; i++, j--)
- {
- printf("%d %d\n", idx[i], idx[j]);
- }
- }
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