Submission #2370491


Source Code Expand

// This file is a "Hello, world!" in C++ language by GCC for wandbox.
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll MOD=1000000007;
int main()
{
    int n;cin>>n;
    vector<pair<int,int> > v;
    for(int i=0;i<n;i++){
        int a;cin>>a;
        v.push_back(make_pair(a,0));
    }
    for(int i=0;i<n;i++){
        int b;cin>>b;
        v.push_back(make_pair(b,1));
    }
    sort(v.begin(),v.end());
    int ac=0;int bc=0;ll ans=1;
    for(int i=0;i<2*n;i++){
        if(v[i].second){
            bc++;
        }else{
            ac++;
        }
        if(bc&&ac){
            (ans*=ac*bc)%=MOD;
            ac--;bc--;
        }
    }
    cout<<ans<<endl;
}

Submission Info

Submission Time
Task A - 1D Matching
User TAISA_
Language C++14 (GCC 5.4.1)
Score 500
Code Size 728 Byte
Status AC
Exec Time 100 ms
Memory 2420 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 500 / 500
Status
AC × 2
AC × 14
Set Name Test Cases
Sample example0.txt, example1.txt
All 000.txt, 001.txt, 002.txt, 003.txt, 004.txt, 005.txt, 006.txt, 007.txt, 008.txt, 009.txt, 010.txt, 011.txt, example0.txt, example1.txt
Case Name Status Exec Time Memory
000.txt AC 58 ms 1400 KB
001.txt AC 22 ms 892 KB
002.txt AC 30 ms 892 KB
003.txt AC 34 ms 1400 KB
004.txt AC 89 ms 2420 KB
005.txt AC 100 ms 2420 KB
006.txt AC 97 ms 2420 KB
007.txt AC 96 ms 2420 KB
008.txt AC 97 ms 2420 KB
009.txt AC 96 ms 2420 KB
010.txt AC 96 ms 2420 KB
011.txt AC 96 ms 2420 KB
example0.txt AC 1 ms 256 KB
example1.txt AC 1 ms 256 KB