제출 #639760

#제출 시각아이디문제언어결과실행 시간메모리
639760mannshah1211Tuna (COCI17_tuna)C++14
50 / 50
1 ms212 KiB
#include <bits/stdc++.h>
using namespace std;

int main(){
  int n, x;
  cin >> n >> x;
  
  int ans = 0;
  
  for(int i = 0; i < n; i++){
    int a, b;
    cin >> a >> b;
    
    if(abs(a - b) <= x){
      ans += max(a, b);
    } else{
      int c;
      cin >> c;
      
      ans += c;
    }
  }
  
  cout << ans;
}
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