Submission #4003291

Source Code Expand

#include<bits/stdc++.h>
using namespace std;
using LL=long long;
int main(){
  int N;cin>>N;
  vector<LL>A(N),B(N);
  for(LL &a:A)cin>>a;
  for(LL &b:B)cin>>b;
  vector<LL>t;
  LL u=0,c=0;
  for(int i=0;i<N;i++){
    if(A[i]>=B[i])
      t.push_back(A[i]-B[i]);
    else{
      u+=B[i]-A[i];
      c++;
    }
  }
  sort(t.begin(),t.end(),greater<LL>());
  LL sum=0;
  for(int i=0;i<=t.size();sum+=t[i],i++){
    if(sum>=u){
      cout<<c+i<<endl;
      return 0;
    }
  }
  cout<<-1<<endl;
}

Submission Info

Submission Time
Task C - Exam and Wizard
User a524287
Language C++14 (GCC 5.4.1)
Score 400
Code Size 519 Byte
Status AC
Exec Time 83 ms
Memory 2936 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 400 / 400
Status
AC × 4
AC × 29
Set Name Test Cases
Sample s1.txt, s2.txt, s3.txt, s4.txt
All 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, s1.txt, s2.txt, s3.txt, s4.txt
Case Name Status Exec Time Memory
01.txt AC 75 ms 2300 KiB
02.txt AC 83 ms 2428 KiB
03.txt AC 78 ms 2300 KiB
04.txt AC 75 ms 2300 KiB
05.txt AC 83 ms 2428 KiB
06.txt AC 79 ms 2428 KiB
07.txt AC 75 ms 2300 KiB
08.txt AC 79 ms 2428 KiB
09.txt AC 80 ms 2300 KiB
10.txt AC 79 ms 2428 KiB
11.txt AC 78 ms 2300 KiB
12.txt AC 80 ms 2428 KiB
13.txt AC 80 ms 2428 KiB
14.txt AC 78 ms 2428 KiB
15.txt AC 80 ms 2428 KiB
16.txt AC 80 ms 2428 KiB
17.txt AC 81 ms 2428 KiB
18.txt AC 82 ms 2428 KiB
19.txt AC 76 ms 2300 KiB
20.txt AC 78 ms 2428 KiB
21.txt AC 78 ms 2300 KiB
22.txt AC 78 ms 2428 KiB
23.txt AC 75 ms 2808 KiB
24.txt AC 74 ms 2808 KiB
25.txt AC 76 ms 2936 KiB
s1.txt AC 1 ms 256 KiB
s2.txt AC 1 ms 256 KiB
s3.txt AC 1 ms 256 KiB
s4.txt AC 1 ms 256 KiB