AtCoder Grand Contest 010

Submission #1358265

Source codeソースコード

#include<bits/stdc++.h>
#include<vector>
#include<queue>
#define N 3005
using namespace std;
vector<int> G[N];
int n,a[N],sg[N],mex[N],d[N],dfn[N],m;
void topsort()
{
	int i,x; queue<int> Q;
	for(i=1;i<=n;i++)
		if(!d[i]) Q.push(i);
	while(!Q.empty()){
		x=Q.front(),Q.pop(),dfn[++m]=x;
		for(i=0;i<G[x].size();i++)
			if(!(--d[G[x][i]]))
				Q.push(G[x][i]);
	  }
}
int main()
{
	int i,j,x,y;
	scanf("%d",&n);
	for(i=1;i<=n;i++)
		scanf("%d",&a[i]);
	for(i=1;i<n;i++){
		scanf("%d %d",&x,&y);
		if(a[x]>a[y]) G[x].push_back(y),d[y]++;
		if(a[y]>a[x]) G[y].push_back(x),d[x]++;
	  }
	topsort();
	for(i=n;i>=1;i--){
		for(j=0;j<G[dfn[i]].size();j++)
			mex[sg[G[dfn[i]][j]]]=i;
		for(j=0;mex[j]==i;j++);
		sg[dfn[i]]=j;
	  }
	for(i=1;i<=n;i++)
		if(sg[i]) printf("%d ",i);
	return 0;
}

Submission

Task問題 F - Tree Game
User nameユーザ名 MemorySlices
Created time投稿日時
Language言語 C++14 (GCC 5.4.1)
Status状態 AC
Score得点 1600
Source lengthソースコード長 826 Byte
File nameファイル名
Exec time実行時間 3 ms
Memory usageメモリ使用量 512 KB

Compiler messageコンパイルメッセージ

./Main.cpp: In function ‘int main()’:
./Main.cpp:23:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d",&n);
^
./Main.cpp:25:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d",&a[i]);
^
./Main.cpp:27:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d",&x,&y);
^

Test case

Set

Set name Score得点 / Max score Cases
Sample - sample1.txt,sample2.txt,sample3.txt
All 1600 / 1600 sample1.txt,sample2.txt,sample3.txt,in1.txt,in10.txt,in11.txt,in12.txt,in13.txt,in14.txt,in15.txt,in16.txt,in17.txt,in18.txt,in19.txt,in2.txt,in20.txt,in21.txt,in22.txt,in23.txt,in24.txt,in25.txt,in26.txt,in27.txt,in28.txt,in29.txt,in3.txt,in30.txt,in31.txt,in32.txt,in33.txt,in34.txt,in35.txt,in36.txt,in37.txt,in38.txt,in39.txt,in4.txt,in40.txt,in41.txt,in42.txt,in43.txt,in44.txt,in45.txt,in46.txt,in47.txt,in48.txt,in49.txt,in5.txt,in50.txt,in6.txt,in7.txt,in8.txt,in9.txt,sample1.txt,sample2.txt,sample3.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
in1.txt AC 3 ms 384 KB
in10.txt AC 3 ms 384 KB
in11.txt AC 3 ms 384 KB
in12.txt AC 2 ms 384 KB
in13.txt AC 2 ms 384 KB
in14.txt AC 3 ms 384 KB
in15.txt AC 3 ms 384 KB
in16.txt AC 3 ms 384 KB
in17.txt AC 3 ms 384 KB
in18.txt AC 3 ms 384 KB
in19.txt AC 3 ms 384 KB
in2.txt AC 3 ms 384 KB
in20.txt AC 3 ms 384 KB
in21.txt AC 3 ms 384 KB
in22.txt AC 3 ms 384 KB
in23.txt AC 3 ms 384 KB
in24.txt AC 3 ms 384 KB
in25.txt AC 3 ms 384 KB
in26.txt AC 3 ms 384 KB
in27.txt AC 3 ms 384 KB
in28.txt AC 3 ms 384 KB
in29.txt AC 3 ms 384 KB
in3.txt AC 3 ms 384 KB
in30.txt AC 3 ms 384 KB
in31.txt AC 2 ms 512 KB
in32.txt AC 2 ms 384 KB
in33.txt AC 2 ms 384 KB
in34.txt AC 2 ms 384 KB
in35.txt AC 2 ms 384 KB
in36.txt AC 1 ms 384 KB
in37.txt AC 1 ms 384 KB
in38.txt AC 1 ms 384 KB
in39.txt AC 1 ms 384 KB
in4.txt AC 3 ms 384 KB
in40.txt AC 2 ms 384 KB
in41.txt AC 2 ms 384 KB
in42.txt AC 2 ms 384 KB
in43.txt AC 2 ms 384 KB
in44.txt AC 2 ms 384 KB
in45.txt AC 2 ms 384 KB
in46.txt AC 2 ms 384 KB
in47.txt AC 2 ms 384 KB
in48.txt AC 2 ms 384 KB
in49.txt AC 2 ms 384 KB
in5.txt AC 2 ms 384 KB
in50.txt AC 2 ms 384 KB
in6.txt AC 3 ms 384 KB
in7.txt AC 3 ms 384 KB
in8.txt AC 3 ms 384 KB
in9.txt AC 3 ms 384 KB
sample1.txt AC 1 ms 384 KB
sample2.txt AC 1 ms 384 KB
sample3.txt AC 1 ms 384 KB