CODE FESTIVAL 2016 Final

Submission #5874479

Source codeソースコード

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define rep(i,n) for(int i=0;i<(n);i++)

signed main(){
	int n,m;cin>>n>>m;
	vector<int>x(n);
	for(auto&& u:x)cin>>u;
	map<int,int>cnt,cntp,cntm;
	for(auto&& u:x){cnt[u]++;cntm[u%m]++;}
	for(auto&& u:cnt){cntp[u.first%m]+=u.second/2;}

	int ret=0;
	ret+=cntm[0]/2;
	if(m%2==0)ret+=cntm[m/2]/2;
	for(int i=1;i<=(m-1)/2;i++){
		int x=i,y=m-x;
		if(cntm[x]>cntm[y])swap(x,y);
		int nx=cntm[x],ny=cntm[y];
		ret+=nx;
		ret+=min((ny-nx)/2,cntp[y]);
	}
	cout<<ret<<endl;

}

Submission

Task問題 D - Pair Cards
User nameユーザ名 mnrutd
Created time投稿日時
Language言語 C++14 (GCC 5.4.1)
Status状態 AC
Score得点 700
Source lengthソースコード長 562 Byte
File nameファイル名
Exec time実行時間 182 ms
Memory usageメモリ使用量 19840 KB

Test case

Set

Set name Score得点 / Max score Cases
sample - sample-01.txt,sample-02.txt
all 700 / 700 sample-01.txt,sample-02.txt,01-01.txt,01-02.txt,01-03.txt,01-04.txt,01-05.txt,01-06.txt,01-07.txt,01-08.txt,01-09.txt,01-10.txt,01-11.txt,01-12.txt,01-13.txt,01-14.txt,01-15.txt,01-16.txt,01-17.txt,01-18.txt,01-19.txt,01-20.txt,01-21.txt,01-22.txt,01-23.txt,01-24.txt,01-25.txt,01-26.txt,01-27.txt,01-28.txt,01-29.txt,01-30.txt,sample-01.txt,sample-02.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
01-01.txt AC 1 ms 256 KB
01-02.txt AC 58 ms 4992 KB
01-03.txt AC 60 ms 4992 KB
01-04.txt AC 60 ms 4992 KB
01-05.txt AC 61 ms 4992 KB
01-06.txt AC 62 ms 4992 KB
01-07.txt AC 63 ms 4992 KB
01-08.txt AC 69 ms 4992 KB
01-09.txt AC 75 ms 5248 KB
01-10.txt AC 105 ms 9728 KB
01-11.txt AC 130 ms 15616 KB
01-12.txt AC 30 ms 1024 KB
01-13.txt AC 47 ms 5120 KB
01-14.txt AC 67 ms 7296 KB
01-15.txt AC 68 ms 7296 KB
01-16.txt AC 72 ms 7296 KB
01-17.txt AC 78 ms 7296 KB
01-18.txt AC 86 ms 7680 KB
01-19.txt AC 97 ms 8832 KB
01-20.txt AC 182 ms 19840 KB
01-21.txt AC 38 ms 1280 KB
01-22.txt AC 39 ms 1280 KB
01-23.txt AC 41 ms 1280 KB
01-24.txt AC 46 ms 1408 KB
01-25.txt AC 60 ms 4096 KB
01-26.txt AC 84 ms 10624 KB
01-27.txt AC 94 ms 13184 KB
01-28.txt AC 38 ms 9856 KB
01-29.txt AC 13 ms 3968 KB
01-30.txt AC 47 ms 9600 KB
sample-01.txt AC 1 ms 256 KB
sample-02.txt AC 1 ms 256 KB