Submission #43420957

Source Code Expand

#include <bits/stdc++.h>

using namespace std;

int n, m, c[200005], vi[200005];
vector<int> v[200005];

bool dfs(int a, int b) {
	vi[a] = b;
	for (int i : v[a])
		if (c[i] == c[a]) {
			if (vi[i] == b)
				return 1;
		} else if (vi[i] == 0 && dfs(i, b))
			return 1;
	return 0;
}

int main() {
	scanf("%d%d", &n, &m);
	while (m--) {
		int ta, tb;
		scanf("%d%d", &ta, &tb);
		v[ta].push_back(tb);
		v[tb].push_back(ta);
	}
	for (int i = 1; i <= n; i++)
		scanf("%d", c + i);
	for (int i = 1; i <= n; i++)
		if (!vi[i] && dfs(i, i)) {
			puts("Yes");
			return 0;
		}
	puts("No");
}

Submission Info

Submission Time
Task B - Switching Travel
User nhho
Language C++ (GCC 9.2.1)
Score 500
Code Size 618 Byte
Status AC
Exec Time 88 ms
Memory 28620 KiB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:20:7: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   20 |  scanf("%d%d", &n, &m);
      |  ~~~~~^~~~~~~~~~~~~~~~
./Main.cpp:23:8: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   23 |   scanf("%d%d", &ta, &tb);
      |   ~~~~~^~~~~~~~~~~~~~~~~~
./Main.cpp:28:8: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   28 |   scanf("%d", c + i);
      |   ~~~~~^~~~~~~~~~~~~

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 500 / 500
Status
AC × 2
AC × 46
Set Name Test Cases
Sample sample-01.txt, sample-02.txt
All in-01.txt, in-02.txt, in-03.txt, in-04.txt, in-05.txt, in-06.txt, in-07.txt, in-08.txt, in-09.txt, in-10.txt, in-11.txt, in-12.txt, in-13.txt, in-14.txt, in-15.txt, in-16.txt, in-17.txt, in-18.txt, in-19.txt, in-20.txt, in-21.txt, in-22.txt, in-23.txt, in-24.txt, in-25.txt, in-26.txt, in-27.txt, in-28.txt, in-29.txt, in-30.txt, in-31.txt, in-32.txt, in-33.txt, in-34.txt, in-35.txt, in-36.txt, in-37.txt, in-38.txt, in-39.txt, in-40.txt, in-41.txt, in-42.txt, in-43.txt, in-44.txt, sample-01.txt, sample-02.txt
Case Name Status Exec Time Memory
in-01.txt AC 88 ms 28620 KiB
in-02.txt AC 85 ms 28504 KiB
in-03.txt AC 86 ms 28616 KiB
in-04.txt AC 82 ms 22244 KiB
in-05.txt AC 81 ms 22348 KiB
in-06.txt AC 57 ms 13048 KiB
in-07.txt AC 75 ms 15244 KiB
in-08.txt AC 51 ms 12120 KiB
in-09.txt AC 47 ms 12240 KiB
in-10.txt AC 21 ms 9848 KiB
in-11.txt AC 57 ms 12920 KiB
in-12.txt AC 42 ms 11480 KiB
in-13.txt AC 83 ms 15552 KiB
in-14.txt AC 62 ms 14076 KiB
in-15.txt AC 34 ms 11140 KiB
in-16.txt AC 21 ms 9856 KiB
in-17.txt AC 60 ms 14096 KiB
in-18.txt AC 14 ms 8984 KiB
in-19.txt AC 54 ms 13208 KiB
in-20.txt AC 39 ms 11656 KiB
in-21.txt AC 34 ms 10648 KiB
in-22.txt AC 26 ms 10256 KiB
in-23.txt AC 45 ms 11652 KiB
in-24.txt AC 16 ms 8860 KiB
in-25.txt AC 38 ms 10812 KiB
in-26.txt AC 69 ms 14304 KiB
in-27.txt AC 43 ms 11512 KiB
in-28.txt AC 14 ms 8884 KiB
in-29.txt AC 11 ms 8488 KiB
in-30.txt AC 52 ms 12488 KiB
in-31.txt AC 87 ms 16000 KiB
in-32.txt AC 21 ms 9192 KiB
in-33.txt AC 22 ms 9368 KiB
in-34.txt AC 53 ms 13656 KiB
in-35.txt AC 78 ms 14940 KiB
in-36.txt AC 8 ms 8176 KiB
in-37.txt AC 9 ms 8188 KiB
in-38.txt AC 6 ms 8320 KiB
in-39.txt AC 7 ms 8276 KiB
in-40.txt AC 32 ms 9348 KiB
in-41.txt AC 32 ms 9376 KiB
in-42.txt AC 85 ms 28600 KiB
in-43.txt AC 85 ms 28476 KiB
in-44.txt AC 85 ms 28508 KiB
sample-01.txt AC 8 ms 8308 KiB
sample-02.txt AC 9 ms 8180 KiB