Submission #1263487
Source Code Expand
#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define pf push_front
#define iter(v, i) for (__typeof__((v).begin()) i = (v).begin(); i != (v).end(); i++)
#define fast_io_without_cstdio ios_base::sync_with_stdio(false), cin.tie(NULL)
#define all(v) (v).begin(), (v).end()
#ifdef __linux__
#define gc getchar_unlocked
#define pc putchar_unlocked
#else
#define gc getchar
#define pc putchar
#endif
#if __cplusplus <= 199711L
template<class BidirIt>
BidirIt prev(BidirIt it, typename iterator_traits<BidirIt>::difference_type n = 1) {
advance(it, -n);
return it;
}
template<class ForwardIt>
ForwardIt next(ForwardIt it, typename iterator_traits<ForwardIt>::difference_type n = 1) {
advance(it, n);
return it;
}
#endif
typedef long long ll;
typedef pair<int, int> ii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef long double ldouble;
const double EPS = 1e-9;
const double PI = 3.141592653589793238462;
template<typename T>
inline T sq(T a) { return a * a; }
//#ifdef LOCAL_MACHINE
//#endif
const int MAX_N = 1e5 + 5;
int deg[MAX_N];
int main() {
//freopen("", "rt", stdin);
//freopen("", "wt", stdout);
int n, m;
scanf("%d %d", &n, &m);
while (m--) {
int a, b;
scanf("%d %d", &a, &b);
deg[a]++;
deg[b]++;
}
int odd = 0;
for (int i = 1; i <= n; i++)
if (deg[i] & 1)
odd++;
puts(odd <= 1 ? "YES" : "NO");
return 0;
}
Submission Info
Submission Time |
|
Task |
B - Unplanned Queries |
User |
chpipis |
Language |
C++14 (GCC 5.4.1) |
Score |
500 |
Code Size |
1592 Byte |
Status |
AC |
Exec Time |
18 ms |
Memory |
640 KB |
Compile Error
./Main.cpp: In function ‘int main()’:
./Main.cpp:59:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d", &n, &m);
^
./Main.cpp:62:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d", &a, &b);
^
Judge Result
Set Name |
Sample |
All |
Score / Max Score |
0 / 0 |
500 / 500 |
Status |
|
|
Set Name |
Test Cases |
Sample |
sample1.txt, sample2.txt |
All |
sample1.txt, sample2.txt, in1.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in2.txt, in3.txt, in4.txt, in5.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt |
Case Name |
Status |
Exec Time |
Memory |
in1.txt |
AC |
18 ms |
640 KB |
in10.txt |
AC |
18 ms |
640 KB |
in11.txt |
AC |
16 ms |
256 KB |
in12.txt |
AC |
18 ms |
640 KB |
in13.txt |
AC |
18 ms |
640 KB |
in14.txt |
AC |
18 ms |
640 KB |
in15.txt |
AC |
1 ms |
256 KB |
in16.txt |
AC |
1 ms |
256 KB |
in2.txt |
AC |
18 ms |
640 KB |
in3.txt |
AC |
18 ms |
640 KB |
in4.txt |
AC |
18 ms |
640 KB |
in5.txt |
AC |
18 ms |
640 KB |
in6.txt |
AC |
18 ms |
640 KB |
in7.txt |
AC |
18 ms |
640 KB |
in8.txt |
AC |
18 ms |
640 KB |
in9.txt |
AC |
18 ms |
640 KB |
sample1.txt |
AC |
1 ms |
256 KB |
sample2.txt |
AC |
1 ms |
256 KB |