제출 #167164

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
167164		egekabas	Pohlepko (COCI16_pohlepko)	C++14	0 / 80	1085 ms	25060 KiB

pohlepko

#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
using namespace std;
typedef long long   ll;
typedef unsigned long long   ull;
typedef long double ld;
typedef pair<ll, ll>    pll;
typedef pair<ull, ull>    pull;
typedef pair<int, int>  pii;
typedef pair<ld, ld>  pld;
int n, m;
char a[2009][2009];
vector<pii> cur = {{1, 1}};
vector<pii> nxt;
string s;
    
int main() {
    
    //freopen("in.txt", "r", stdin);
    //freopen("out.txt", "w", stdout);
    
    scanf("%d %d", &n, &m);
    for(int i = 1; i <= n; ++i)
        for(int j = 1; j <= m; ++j)
            scanf("%c", &a[i][j]);
    s.pb(a[1][1]);
    while(1){
        int mini = 1e9;
        for(auto u : cur){
            if(u == mp(n, m))
                goto END;
            if(u.ff+1 <= n)
                mini = min((int)a[u.ff+1][u.ss], mini);
            if(u.ss+1 <= m)
                mini = min((int)a[u.ff][u.ss+1], mini);
        }
        s.pb(mini);
        for(auto u : cur){
            if(u.ff+1 <= n && a[u.ff+1][u.ss] == mini)
                nxt.pb({u.ff+1, u.ss});
            if(u.ss+1 <= m && a[u.ff][u.ss+1] == mini)
                nxt.pb({u.ff, u.ss+1});
        }
        cur = nxt;
        nxt.clear();
    }
    END:;
    cout << s << "\n";
}

컴파일 시 표준 에러 (stderr) 메시지

pohlepko.cpp: In function 'int main()':
pohlepko.cpp:25:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~~
pohlepko.cpp:28:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%c", &a[i][j]);
             ~~~~~^~~~~~~~~~~~~~~~

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