제출 #134023

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
134023		dragonslayerit	Pairs (IOI07_pairs)	C++14	30 / 100	30 ms	1012 KiB

pairs

#include <cstdio>
#include <vector>
#include <algorithm>

int main(){
  int B,N,D,M;
  scanf("%d %d %d %d",&B,&N,&D,&M);
  if(B==1){
    std::vector<int> xs;
    for(int i=0;i<N;i++){
      int X;
      scanf("%d",&X);
      xs.push_back(X);
    }
    std::sort(xs.begin(),xs.end());
    long long ans=0;
    int j=0;
    for(int i=0;i<N;i++){
      while(xs[i]-xs[j]>D) j++;
      ans+=i-j;
    }
    printf("%lld\n",ans);
  }
}

컴파일 시 표준 에러 (stderr) 메시지

pairs.cpp: In function 'int main()':
pairs.cpp:7:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d %d",&B,&N,&D,&M);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
pairs.cpp:12:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
       scanf("%d",&X);
       ~~~~~^~~~~~~~~

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