제출 #1091422

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1091422		kkkkkkkk	Sailing Race (CEOI12_race)	C++14	40 / 100	393 ms	2652 KiB

race

#include <bits/stdc++.h>

using namespace std;

int n, k, a;
bool sosed[505][505];
int dp[505][505][2];

int f(int poc, int kraj, int poz) {
    int nasoka=(poc==poz);
    if (dp[poc][kraj][nasoka]!=-1)
        return dp[poc][kraj][nasoka];
    int rez=0;
    for (int next=poc+1; next!=kraj; next++) {
        if (next>n) next=1;
        if (kraj==next) break;
        if (sosed[poz][next]) {
            rez=max(rez, 1+f(poc, next, next));
            rez=max(rez, 1+f(next, kraj, next));
        }
    }
    return dp[poc][kraj][nasoka]=rez;
}

int main()
{
    cin >> n >> k;
    for (int i=1;i<=n;i++) {
        while (cin >> a) {
            if (a==0) break;
            sosed[i][a]=1;
        }
    }
    memset(dp, -1, sizeof(dp));
    int rez=0, teme;
    for (int i=1;i<=n;i++) {
        if (f(i, i, i)>rez) {
            rez=f(i, i, i);
            teme=i;
        }
    }
    cout << rez << endl << teme;

    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

race.cpp: In function 'int main()':
race.cpp:42:28: warning: 'teme' may be used uninitialized in this function [-Wmaybe-uninitialized]
   42 |     cout << rez << endl << teme;
      |                            ^~~~

• Subtask 1: 40 / 100