제출 #645621

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
645621		Kiarat	Chessboard (IZhO18_chessboard)	C++17	0 / 100	62 ms	212 KiB

chessboard

#include <bits/stdc++.h>
 
using namespace std;
typedef long long ll;

ll a[100001 * 4];

int main()
{
   ll n,k;

   cin >> n >> k;

   ll oo = 0;
   ll qwe = 0;
    if(n % 2 == 0)
        oo =  n / 2 * n;
    else if(n % 2 == 1)
        qwe = n / 2 * n + (n/2);
   

   if(k == 0)
    {
    if(n % 2 == 0)
        cout <<   n / 2 * n;
    else if(n % 2 == 1)
        cout << n / 2 * n + (n/2);
    }


   else
   {
    ll ans = 0,sum = 0,cnt = 0,ss = 0,ww = 0;
    ll x = k;
    while(k--)
    {
        ll x1,y1,x2,y2;

        cin >> x1 >> y1 >> x2 >> y2;
        if(x1 == x2 && y1 == y2)
        {
            if(x1 % 2 == 1 && x1 % 2 == y1 % 2)
                ss++;
            else if(x1 % 2 == 0 && x1 % 2 == y1 % 2)
            {
                ss++;
            }
        }
    }



    ww = x - ss;
    ans = oo - ss + ww;
    sum = qwe - ww + ss;

    cout << min(ans,sum);

   }
}

/// cout << fixes << serprecision(x) << " "

컴파일 시 표준 에러 (stderr) 메시지

chessboard.cpp: In function 'int main()':
chessboard.cpp:33:24: warning: unused variable 'cnt' [-Wunused-variable]
   33 |     ll ans = 0,sum = 0,cnt = 0,ss = 0,ww = 0;
      |                        ^~~

• Subtask 1: 0 / 8
• Subtask 2: 0 / 8
• Subtask 3: 0 / 15
• Subtask 4: 0 / 16
• Subtask 5: 0 / 23
• Subtask 6: 0 / 30