제출 #96386

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
96386		DiegoGarcia	NLO (COCI18_nlo)	C++14	11 / 110	156 ms	16276 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;
ll mat[1003][1003];

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=0; s<k; s++ )
    {
        scanf("%lld %lld %lld",&xi,&yi,&ri);
        for( ll i=1; i<=n; i++ ) for( ll j=1; j<=n; j++ )mat[i][j]++;
        for( ll i=1; i<=n; i++ )
        {
            for( ll j=1; j<=m; j++ )
            {
                if( (xi-i)*(xi-i) + (yi-j)*(yi-j) <= ri*ri )
                    mat[i][j] = 0;
            }
        }
    }
    ll ans = 0;
    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:18:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld %lld",&n,&m);
     ~~~~~^~~~~~~~~~~~~~~~~~~
nlo.cpp:19:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld",&k);
     ~~~~~^~~~~~~~~~~
nlo.cpp:23:14: 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: 11 / 110