Submission #1344745

#	Time	Username	Problem	Language	Result	Execution time	Memory
1344745		ElayV13	Triple Peaks (IOI25_triples)	C++20	0 / 100	11 ms	1860 KiB

triples

#include "triples.h"
#include "bits/stdc++.h"
using namespace std;

#define ll long long

int N;

long long count_triples(vector<int>H)
{
      N=H.size();
      ll res=0;
      map<ll,ll>mp1,mp2;
      for(int i=0;i<N;i++) mp2[H[i]-i]++;
      for(int i=0;i<N;i++){
            mp2[H[i]-i]--;
            ll f=mp1[H[i]-i],s=mp2[H[i]-i];
            res+=(f*s);
            mp1[H[i]-i]++;
      }
      return res;
}

vector<int>construct_range(int M,int K)
{

}

Compilation message (stderr)

triples.cpp: In function 'std::vector<int> construct_range(int, int)':
triples.cpp:27:1: warning: no return statement in function returning non-void [-Wreturn-type]
   27 | }
      | ^

• Subtask 0: 0 / 0
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• Subtask 6: 0 / 19
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• Subtask 12: 0 / 5