Submission #74093378

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
const long long mod=998244353;
const double pi=3.141592653589793;
int main(){
  int N,L,R;cin>>N>>L>>R;
  
  map<char,vector<int>> F;
  vector<char> S(N);
  for(int i=0;i<N;i++){
    cin>>S[i];
    F[S[i]].push_back(i);
  }
  long long answer=0;
  for(char c='a';c<='z';c++){
    vector<int> A=F[c];
    for(int k=0;k<A.size()-1;k++){
      auto itrL=lower_bound(A.begin()+k,A.end(),A[k]+L);
      if(itrL==A.end())break;
      auto itrR=upper_bound(A.begin()+k,A.end(),A[k]+R);
      answer+=distance(itrL,itrR);
      
    }
  }
  cout <<answer<<endl;
  //*/
  
  
}

Submission Info

Compile Error

./Main.cpp: In function 'int main()':
./Main.cpp:17:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for(int k=0;k<A.size()-1;k++){
      |                 ~^~~~~~~~~~~

Judge Result