Submission #9399579

Source Code Expand

#include <cstdio>
#include <vector>

const int MN = 100005;

int N, M, deg[MN];
int stk[MN], C4;
std::vector<int> G[MN];

int vis[MN], cnt;
void DFS(int u) {
	vis[u] = 1, ++cnt;
	for (auto v : G[u]) if (!vis[v]) DFS(v);
}

int main() {
	scanf("%d%d", &N, &M);
	for (int i = 1; i <= M; ++i) {
		int x, y;
		scanf("%d%d", &x, &y);
		G[x].push_back(y);
		G[y].push_back(x);
		++deg[x], ++deg[y];
	}
	for (int i = 1; i <= N; ++i) if (deg[i] & 1) return puts("No"), 0;
	for (int i = 1; i <= N; ++i) if (deg[i] >= 6) return puts("Yes"), 0;
	for (int i = 1; i <= N; ++i) if (deg[i] == 4) stk[++C4] = i;
	if (C4 >= 3) return puts("Yes"), 0;
	if (C4 <= 1) return puts("No"), 0;
	vis[stk[2]] = 1;
	DFS(stk[1]);
	puts(cnt == N - 1 ? "No" : "Yes");
	return 0;
}

Submission Info

Submission Time
Task C - Three Circuits
User PinkRabbit
Language C++14 (GCC 5.4.1)
Score 800
Code Size 782 Byte
Status AC
Exec Time 42 ms
Memory 7296 KiB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:17:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &M);
                       ^
./Main.cpp:20:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &x, &y);
                        ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 800 / 800
Status
AC × 3
AC × 62
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
All sample_01.txt, sample_02.txt, sample_03.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
Case Name Status Exec Time Memory
sample_01.txt AC 2 ms 2560 KiB
sample_02.txt AC 2 ms 2560 KiB
sample_03.txt AC 2 ms 2560 KiB
test_01.txt AC 10 ms 3456 KiB
test_02.txt AC 4 ms 2816 KiB
test_03.txt AC 2 ms 2560 KiB
test_04.txt AC 35 ms 6016 KiB
test_05.txt AC 11 ms 3584 KiB
test_06.txt AC 24 ms 4992 KiB
test_07.txt AC 2 ms 2560 KiB
test_08.txt AC 2 ms 2560 KiB
test_09.txt AC 42 ms 7296 KiB
test_10.txt AC 41 ms 7296 KiB
test_11.txt AC 19 ms 4992 KiB
test_12.txt AC 18 ms 4736 KiB
test_13.txt AC 20 ms 5120 KiB
test_14.txt AC 17 ms 4608 KiB
test_15.txt AC 22 ms 5248 KiB
test_16.txt AC 24 ms 5504 KiB
test_17.txt AC 15 ms 4352 KiB
test_18.txt AC 18 ms 4864 KiB
test_19.txt AC 23 ms 5504 KiB
test_20.txt AC 30 ms 6144 KiB
test_21.txt AC 22 ms 5376 KiB
test_22.txt AC 13 ms 4096 KiB
test_23.txt AC 2 ms 2560 KiB
test_24.txt AC 2 ms 2560 KiB
test_25.txt AC 2 ms 2560 KiB
test_26.txt AC 2 ms 2560 KiB
test_27.txt AC 20 ms 4480 KiB
test_28.txt AC 22 ms 4736 KiB
test_29.txt AC 17 ms 4224 KiB
test_30.txt AC 15 ms 3968 KiB
test_31.txt AC 27 ms 5248 KiB
test_32.txt AC 20 ms 4608 KiB
test_33.txt AC 20 ms 4480 KiB
test_34.txt AC 27 ms 5248 KiB
test_35.txt AC 22 ms 4736 KiB
test_36.txt AC 20 ms 4608 KiB
test_37.txt AC 21 ms 4608 KiB
test_38.txt AC 22 ms 4736 KiB
test_39.txt AC 2 ms 2560 KiB
test_40.txt AC 36 ms 6144 KiB
test_41.txt AC 22 ms 4736 KiB
test_42.txt AC 18 ms 4352 KiB
test_43.txt AC 26 ms 4736 KiB
test_44.txt AC 29 ms 4864 KiB
test_45.txt AC 26 ms 4864 KiB
test_46.txt AC 27 ms 4864 KiB
test_47.txt AC 30 ms 4864 KiB
test_48.txt AC 23 ms 4736 KiB
test_49.txt AC 31 ms 4864 KiB
test_50.txt AC 31 ms 4864 KiB
test_51.txt AC 30 ms 4992 KiB
test_52.txt AC 28 ms 4736 KiB
test_53.txt AC 14 ms 3712 KiB
test_54.txt AC 15 ms 3840 KiB
test_55.txt AC 16 ms 3584 KiB
test_56.txt AC 15 ms 3456 KiB
test_57.txt AC 14 ms 3712 KiB
test_58.txt AC 15 ms 3456 KiB
test_59.txt AC 21 ms 3840 KiB