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- void find_pair(int a[], int n, int K){
- map <int, int> hash;
- int i;
- for(i=0; i<n; i++){
- hash[i] = -1;
- }
- for(i=0; i<n; i++){
- int val = K + a[i];
- if(hash[a[i]] != -1){
- cout <<hash[a[i]] <<" "<< i;
- return;
- }
- hash[val] = i;
- }
- }
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