AtCoder Beginner Contest 002

Submission #3725129

Source codeソースコード

#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <vector>
using namespace std;

size_t N,M;

int dfs(size_t i, int num, vector<vector<int>> relation, bool member[]) {
    if (i == N) {
        return num;
    } else {
        member[i] = false;
        int a = dfs(i+1,num,relation,member), b=0;
        size_t j;
        bool irel[i];
        for (j=0;j<i;j++) irel[j] = false;
        for (j=0; j<relation[i].size(); j++) {
            irel[relation[i][j]] = true;
        for (j=0; j<=i; j++) {
            if (member[j] && !irel[j]) {//jがメンバーで、jとiが知り合いじゃないなら
            if (j == i) { //最後まできたら
                member[i] = true;
                b = dfs(i+1,num+1,relation,member);
        return max(a,b);

int main() {
    scanf("%zd %zd",&N,&M);
    int xi,yi;
    size_t i;
    bool member[N];
    vector<vector<int>> relation(N);
    for (i=0; i<M; i++) {
        scanf("%d %d",&xi,&yi);


Task問題 D - 派閥
User nameユーザ名 shugo256
Created time投稿日時
Language言語 C++14 (GCC 5.4.1)
Status状態 RE
Score得点 0
Source lengthソースコード長 1238 Byte
File nameファイル名
Exec time実行時間 ms
Memory usageメモリ使用量 -

Compiler messageコンパイルメッセージ

./Main.cpp: In function ‘int main()’:
./Main.cpp:35:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%zd %zd",&N,&M);
./Main.cpp:41:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d",&xi,&yi);

Test case


Set name Score得点 / Max score Cases
all 0 / 100 00_sample_01.txt,00_sample_02.txt,00_sample_03.txt,00_sample_04.txt,test_01.txt,test_02.txt,test_03.txt,test_04.txt,test_05.txt,test_06.txt,test_07.txt,test_08.txt,test_09.txt,test_10.txt,test_11.txt,test_12.txt,test_13.txt,test_14.txt,test_15.txt,test_16.txt,test_17.txt,test_18.txt,test_19.txt,test_20.txt,test_21.txt,test_22.txt,test_23.txt,test_24.txt,test_25.txt,test_26.txt,test_27.txt,test_28.txt,test_29.txt,test_30.txt,test_31.txt,test_32.txt,test_33.txt,test_34.txt,test_35.txt,test_36.txt,test_37.txt,test_38.txt,test_39.txt,test_40.txt,test_41.txt,test_42.txt,test_43.txt,test_44.txt,test_45.txt,test_46.txt,test_47.txt,test_48.txt,test_49.txt,test_50.txt,test_51.txt,test_52.txt,test_53.txt,test_54.txt,test_55.txt,test_56.txt,test_57.txt,test_58.txt,test_59.txt,test_60.txt,test_61.txt,test_62.txt,test_63.txt,test_64.txt,test_65.txt,test_66.txt,test_67.txt,test_68.txt,test_69.txt,test_70.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
00_sample_01.txt RE
00_sample_02.txt WA
00_sample_03.txt RE
00_sample_04.txt AC 1 ms 256 KB
test_01.txt AC 1 ms 256 KB
test_02.txt AC 1 ms 256 KB
test_03.txt AC 1 ms 256 KB
test_04.txt RE
test_05.txt AC 1 ms 256 KB
test_06.txt RE
test_07.txt RE
test_08.txt RE
test_09.txt RE
test_10.txt RE
test_11.txt AC 1 ms 256 KB
test_12.txt RE
test_13.txt RE
test_14.txt AC 1 ms 256 KB
test_15.txt RE
test_16.txt RE
test_17.txt RE
test_18.txt RE
test_19.txt RE
test_20.txt RE
test_21.txt RE
test_22.txt RE
test_23.txt RE
test_24.txt RE
test_25.txt AC 1 ms 256 KB
test_26.txt RE
test_27.txt RE
test_28.txt RE
test_29.txt RE
test_30.txt RE
test_31.txt RE
test_32.txt RE
test_33.txt RE
test_34.txt RE
test_35.txt RE
test_36.txt RE
test_37.txt AC 1 ms 256 KB
test_38.txt RE
test_39.txt RE
test_40.txt RE
test_41.txt RE
test_42.txt RE
test_43.txt AC 1 ms 256 KB
test_44.txt RE
test_45.txt RE
test_46.txt RE
test_47.txt RE
test_48.txt RE
test_49.txt RE
test_50.txt AC 1 ms 256 KB
test_51.txt RE
test_52.txt RE
test_53.txt RE
test_54.txt RE
test_55.txt RE
test_56.txt RE
test_57.txt RE
test_58.txt RE
test_59.txt RE
test_60.txt RE
test_61.txt RE
test_62.txt AC 1 ms 256 KB
test_63.txt RE
test_64.txt RE
test_65.txt RE
test_66.txt RE
test_67.txt RE
test_68.txt RE
test_69.txt RE
test_70.txt RE