제출 #96388

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
96388		DiegoGarcia	NLO (COCI18_nlo)	C++11	22 / 110	148 ms	16376 KiB

nlo

#include <bits/stdc++.h>
#define optimiza_io ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define pb push_back
#define ft first
#define sd second
#define ll long long
#define ld long double
#define ull unsigned long long
#define INF 1E5
#define LINF 1E18
using namespace std;

ll n,m,k,xi,yi,ri,ans=0;
ll mat[1006][1006];
int main()
{
    scanf("%lld %lld",&n,&m);
    scanf("%lld",&k);
   // for( ll i=1; i<=n; i++ ) for( ll j=1; j<=n; j++ ) mat[i][j] = 1;
    for( ll s=1; s<=k; s++ )
    {
        scanf("%lld %lld %lld",&xi,&yi,&ri);
        for( ll i=1; i<=n; i++ ) for( ll j=1; j<=m; j++ )mat[i][j]++;
        for( ll x=1; x<=n; x++ )
        {
            for( ll y=1; y<=m; y++ )
            {
                if( xi*xi + yi*yi - ri*ri <= 2*(xi*x + yi*y) - x*x - y*y )
                    mat[x][y] = 0;
            }

        }
    }
    if( k == 0 )
        ans = n*m;
    for( ll i=1; i<=n; i++ )
    {
        for( ll j=1; j<=m; j++ )
        {
            ans += mat[i][j];
        }
    }
    printf("%lld",ans);
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

nlo.cpp: In function 'int main()':
nlo.cpp:17:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld %lld",&n,&m);
     ~~~~~^~~~~~~~~~~~~~~~~~~
nlo.cpp:18:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld",&k);
     ~~~~~^~~~~~~~~~~
nlo.cpp:22:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld %lld %lld",&xi,&yi,&ri);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 22 / 110