제출 #289264

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
289264	2020-09-02 13:49:42	evpipis	Mousetrap (CEOI17_mousetrap)	C++11	100 / 100	944 ms	170744 KiB

mousetrap

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#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define mp make_pair
#define pb push_back
typedef pair<int, int> ii;
const int len = 1e6+5, inf = 1e9;
vector<int> adj[len], cost[len], order;
int block[len], dp[2][len];
int fix_order(int u, int p, int en){
    if (u == en){
        block[u] = 1;
        return 1;
    }
    for (auto v: adj[u]){
        if (v == p) continue;
        if (fix_order(v, u, en)){
            order.pb(u);
            block[u] = 1;
            return 1;
        }
    }
    return 0;
 
 
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컴파일 시 표준 에러 (stderr) 메시지

mousetrap.cpp: In function 'bool can_win(int)':
mousetrap.cpp:53:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |         for (int j = 0; j < cost[i].size(); j++){
      |                         ~~^~~~~~~~~~~~~~~~
mousetrap.cpp: In function 'int main()':
mousetrap.cpp:84:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   84 |     scanf("%d %d %d", &n, &en, &st);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
mousetrap.cpp:87:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   87 |         scanf("%d %d", &a, &b);
      |         ~~~~~^~~~~~~~~~~~~~~~~
mousetrap.cpp: In function 'int bs(int, int)':
mousetrap.cpp:77:12: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized]
   77 |     return ans;
      |            ^~~

• Subtask 1: 20 / 20
• Subtask 2: 25 / 25
• Subtask 3: 20 / 20
• Subtask 4: 35 / 35