제출 #154960

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
154960	2019-09-25 17:03:00	karma	Mergers (JOI19_mergers)	C++14	70 / 100	3045 ms	73272 KiB

mergers

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#include<bits/stdc++.h>
#define Task     "test"
#define ll       long long
#define pb       emplace_back
#define mp       make_pair
#define fi       first
#define se       second
using namespace std;
const int N = int(5e5) + 5;
typedef pair<int, int> pii;
vector<int> a[N], g;
int sz[N], n, k, u, v, nstate, full, res = 0;
int cnt[N], s[N], orgcnt[N], deg[N];
int in[N], out[N], Time;
bool big[N], choose[N];
vector<pii> vertex;
void DFS(int u, int par) {
    sz[u] = 1; in[u] = ++Time;
    for(int i = 0; i < int(a[u].size()); ++i) {
       if(a[u][i] == par) swap(a[u][i], a[u].back());
       if(a[u][i] != par) DFS(a[u][i], u), sz[u] += a[u][i];
    }
    if(u != 1) a[u].pop_back();
    out[u] = Time;
}
 
 
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컴파일 시 표준 에러 (stderr) 메시지

mergers.cpp: In function 'int main()':
mergers.cpp:58:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen(Task".inp", "r", stdin);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
mergers.cpp:59:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen(Task".out", "w", stdout);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 24 / 24
• Subtask 3: 14 / 14
• Subtask 4: 22 / 22
• Subtask 5: 0 / 30