#include <bits/stdc++.h>
#define endl "\n"
#define mp make_pair
#define pb push_back
#define F first
#define S second
#define sz size()
#define rep(i,k,n) for(int i = k ; i <= n ; ++i)
#define per(i,k,n) for(int i = k ; i >= n ; --i)
#define Zymraq() ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#define all(x) x.begin(),x.end()
#define fr(x) freopen(x".in","r",stdin),freopen(x".out","w",stdout)
#define toqta return 0
#define PERMUTE next_permutation
#define no cout<<"No"<<endl;
#define yes cout<<"Yes"<<endl;
#define a() a + 1, a + n + 1
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef string S;
typedef double ld;
typedef long double lld;
const int N = 1e6 + 17;
const int modd = 1e9 + 7;
const int INF = 1e9 - 19;
const int P = 37;
const ll NN = 1e7 + 17;
const ld eps = 1e-19;
const double pi = 3.141592653589793238462643383279 ;
bool sortbysec(const pair<int,int> &a, const pair<int,int> &b){
return (a.second < b.second);
}
void pre (ll a) {
cout << fixed << setprecision(a);
return;
}
ll n, m;
ll odd, even;
int main () {
cin >> n >> m;
ll cur = n;
if (m == 0) {
if (n % 3 == 0) {
cout << (n / 3) * (n / 3) * 4;
return 0;
}
if (n % 5 == 0) {
cout << (n / 5) * (n / 5) * 12;
return 0;
}
if (n % 7 == 0) {
cout << (n / 7) * (n / 7) * 24;
return 0;
}
if (n % 13 == 0) {
cout << (n / 13) * (n / 13) * 84;
return 0;
}
cout << n * n / 2;
return 0;
}
while (m --) {
ll x, y, xx, yy;
cin >> x >> y >> xx >> yy;
if ((x + y) % 2 == 0) even ++;
else odd ++;
}
ll needeven = (n * n / 2 + ((n % 2) * (n / 2 + (n % 2)))) - even;
ll needodd = (n * n / 2 + (n % 2) * (n / 2)) - odd;
cout << min (needeven + odd, needodd + even);
return 0;
}
Compilation message
chessboard.cpp: In function 'int main()':
chessboard.cpp:53:5: warning: unused variable 'cur' [-Wunused-variable]
53 | ll cur = n;
| ^~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Incorrect |
1 ms |
204 KB |
Output isn't correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
64 ms |
204 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
204 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
204 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
64 ms |
204 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Incorrect |
1 ms |
204 KB |
Output isn't correct |