AtCoder Grand Contest 006

Submission #1365201

Source codeソースコード

#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=(a);i<=(b);i++)
#define per(i,a,b) for(int i=(a);i>=(b);i--)
#define forE(i,x)  for(int i=head[x];i!=-1;i=ne[i])
using namespace std;
inline void read(int &x){
	x=0;char ch=getchar();int f=1;
	while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}
	while(ch>='0'&&ch<='9'){x=10*x+ch-'0';ch=getchar();}x*=f;
}
inline void judge(){
	freopen("table.in","r",stdin);
	freopen("table.out","w",stdout);
}
const int maxn=100005;
typedef long long i64;
int num,n,m,head[maxn],t[maxn<<1],ne[maxn<<1],v[maxn<<1];
inline void addedge(int x,int y,int z){
	ne[++num]=head[x];head[x]=num;t[num]=y;v[num]=z;
}
bool vis[maxn];
int cnt[4],d[maxn],T;
bool godie=0;
inline void dfs(int x,int l){
	vis[x]=1;d[x]=l;cnt[l]++;
	forE(i,x)if(!vis[t[i]]){
		dfs(t[i],(l+v[i])%3);T++;
	}else{
		if((l+v[i])%3!=d[t[i]])godie=1;T++;
	}
}i64 ans=0;
int main(){
//	judge();
	read(n);read(m);
	rep(i,1,n)head[i]=-1;
	rep(i,1,m){
		int x,y;read(x);read(y);
		addedge(x,y,1);
		addedge(y,x,2);
	}
	rep(i,1,n){
		if(vis[i])continue;memset(cnt,0,sizeof(cnt));godie=0;T=0;
		dfs(i,0);i64 sum=cnt[0]+cnt[1]+cnt[2];
		if(godie){
			ans+=sum*sum;continue;	
		}else{
			if(cnt[0]&&cnt[1]&&cnt[2]){
				ans+=1ll*cnt[0]*cnt[1]+1ll*cnt[0]*cnt[2]+1ll*cnt[1]*cnt[2];
			}else{
				ans+=T/2;
			}
		}
	}cout<<ans<<endl;
}

Submission

Task問題 F - Blackout
User nameユーザ名 cwystc
Created time投稿日時
Language言語 C++14 (GCC 5.4.1)
Status状態 AC
Score得点 1700
Source lengthソースコード長 1377 Byte
File nameファイル名
Exec time実行時間 19 ms
Memory usageメモリ使用量 4992 KB

Test case

Set

Set name Score得点 / Max score Cases
Sample - 0_00.txt,0_01.txt,0_02.txt
All 1700 / 1700 0_00.txt,0_01.txt,0_02.txt,1_00.txt,1_01.txt,1_02.txt,1_03.txt,1_04.txt,1_05.txt,1_06.txt,1_07.txt,1_08.txt,1_09.txt,1_10.txt,1_11.txt,1_12.txt,1_13.txt,1_14.txt,1_15.txt,1_16.txt,1_17.txt,1_18.txt,1_19.txt,1_20.txt,1_21.txt,1_22.txt,1_23.txt,1_24.txt,1_25.txt,1_26.txt,1_27.txt,1_28.txt,1_29.txt,1_30.txt,1_31.txt,1_32.txt,1_33.txt,1_34.txt,1_35.txt,1_36.txt,1_37.txt,1_38.txt,1_39.txt,1_40.txt,1_41.txt,1_42.txt,1_43.txt,1_44.txt,1_45.txt,1_46.txt,1_47.txt,1_48.txt,1_49.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
0_00.txt AC 1 ms 256 KB
0_01.txt AC 1 ms 256 KB
0_02.txt AC 1 ms 256 KB
1_00.txt AC 1 ms 256 KB
1_01.txt AC 2 ms 1152 KB
1_02.txt AC 12 ms 3456 KB
1_03.txt AC 13 ms 4992 KB
1_04.txt AC 13 ms 4992 KB
1_05.txt AC 13 ms 4992 KB
1_06.txt AC 13 ms 4992 KB
1_07.txt AC 13 ms 4992 KB
1_08.txt AC 13 ms 4992 KB
1_09.txt AC 13 ms 4992 KB
1_10.txt AC 13 ms 4992 KB
1_11.txt AC 13 ms 4992 KB
1_12.txt AC 13 ms 4992 KB
1_13.txt AC 13 ms 4992 KB
1_14.txt AC 10 ms 3456 KB
1_15.txt AC 10 ms 3456 KB
1_16.txt AC 10 ms 3456 KB
1_17.txt AC 9 ms 2560 KB
1_18.txt AC 19 ms 3840 KB
1_19.txt AC 19 ms 3840 KB
1_20.txt AC 19 ms 3840 KB
1_21.txt AC 19 ms 3840 KB
1_22.txt AC 19 ms 3840 KB
1_23.txt AC 19 ms 3840 KB
1_24.txt AC 18 ms 3840 KB
1_25.txt AC 19 ms 3840 KB
1_26.txt AC 19 ms 3840 KB
1_27.txt AC 18 ms 3840 KB
1_28.txt AC 19 ms 3840 KB
1_29.txt AC 19 ms 3840 KB
1_30.txt AC 18 ms 3840 KB
1_31.txt AC 18 ms 3840 KB
1_32.txt AC 19 ms 3840 KB
1_33.txt AC 19 ms 3840 KB
1_34.txt AC 18 ms 3712 KB
1_35.txt AC 17 ms 3328 KB
1_36.txt AC 18 ms 3584 KB
1_37.txt AC 19 ms 3840 KB
1_38.txt AC 17 ms 3200 KB
1_39.txt AC 16 ms 3072 KB
1_40.txt AC 19 ms 3840 KB
1_41.txt AC 19 ms 3840 KB
1_42.txt AC 17 ms 3328 KB
1_43.txt AC 18 ms 3456 KB
1_44.txt AC 18 ms 3712 KB
1_45.txt AC 16 ms 3072 KB
1_46.txt AC 19 ms 3840 KB
1_47.txt AC 19 ms 3840 KB
1_48.txt AC 17 ms 3328 KB
1_49.txt AC 18 ms 3584 KB