//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,fma")
//#pragma GCC optimize("unroll-loops")
#include<bits/stdc++.h>
#define ll long long
const int nmax = 1e6 + 5, N = 1e5;
const ll oo = 1e9;
const int lg = 31, M = 2, mod = 1e6;
#define pii pair<ll, ll>
#define fi first
#define se second
#define debug(a, n) for(int i = 1; i <= n; ++i) cout << a[i] << ' '; cout << "\n";
#define endl "\n"
#define task "code"
using namespace std;
int n;
pii a[nmax];
main(){
ios_base::sync_with_stdio(0);
cin.tie(0);cout.tie(0);
// freopen(task".inp", "r", stdin);
// freopen(task".out", "w", stdout);
cin >> n;
for(int i = 0; i < n; ++i) cin >> a[i].fi >> a[i].se;
int bs = 50;
while(bs--){
for(int i = 0; i < n; ++i){
if(a[i].fi > a[i].se){
ll x = (a[i].fi - a[i].se) / 2;
a[i].fi -= x * 2;
a[(i + 1) % n].fi += x;
}
}
}
bool ok = 1;
for(int i = 0; i < n;++i){
// cout << a[i].fi << ' ';
ok &= (a[i].fi == a[i].se);
}
if(ok) cout << "Yes";
else cout << "No";
}
/*
3 5
12345678
000
0??
1?0
?11
???
3 1
12345678
???
*/
Compilation message
remittance.cpp:21:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
21 | main(){
| ^~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
464 KB |
Output is correct |
6 |
Correct |
0 ms |
600 KB |
Output is correct |
7 |
Correct |
0 ms |
464 KB |
Output is correct |
8 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
9 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
464 KB |
Output is correct |
6 |
Correct |
0 ms |
600 KB |
Output is correct |
7 |
Correct |
0 ms |
464 KB |
Output is correct |
8 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
9 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
464 KB |
Output is correct |
6 |
Correct |
0 ms |
600 KB |
Output is correct |
7 |
Correct |
0 ms |
464 KB |
Output is correct |
8 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
9 |
Halted |
0 ms |
0 KB |
- |