제출 #280089

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
280089	2020-08-22 13:27:47	3zp	Mergers (JOI19_mergers)	C++14	100 / 100	1715 ms	78092 KiB

mergers

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#include<bits/stdc++.h>
using namespace std;
const int mN = 500009;
vector<int> V[mN];
int L[mN],R[mN], A[mN], St[mN], En[mN], S[mN], Good[mN], Deg[mN], Sz[mN], Min[mN], Max[mN];
int c = 1;
int good_cnt = 0;
void dfs1(int x, int p){
    L[x] = c;
    R[x] = c;
    A[c] = x;
    c++;
    for(int y : V[x]){
        if(y == p) continue;
        dfs1(y, x);
        R[x] = R[y];
    }
}
void dfs2(int x, int p){
    if(Good[x]) Sz[x] = 1;
    for(int y : V[x]){
        if(y == p) continue;
        dfs2(y, x);
        Sz[x] += Sz[y];
    }
    if(x > 1 && (Good[x] || (Sz[x] > 0 && Sz[x] < good_cnt))){
        Deg[x]++;
        Deg[p]++;
    }
 
 
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컴파일 시 표준 에러 (stderr) 메시지

mergers.cpp:47:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   47 | main(){
      |      ^

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