Submission #73911175

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;

void solve(int n, vector<int>& a, vector<int>& b, vector<int>& c)
{
  int sum = 0;
  
  for(int i = 0; i < n; i++)
  {
    if(b[i] <= c[a[i] - 1])
    {
      c[a[i] - 1] -= b[i];
      sum += b[i];
    }
    else
    {
      sum += c[a[i] - 1];
      c[a[i] - 1] = 0;
    }
  }
  cout << sum;
}

int main()
{
  int n, m;
  cin >> n >> m;
  vector<int> c(m), a(n), b(n);
  for(int i = 0; i < m; i++)
  {
    cin >> c[i];
  }
  for(int i = 0; i < n; i++)
  {
    cin >> a[i] >> b[i];
  }
  
  solve(n, a, b, c);
  return 0;
}

Submission Info

Judge Result