제출 #295463

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
295463	2020-09-09 16:58:21	dsabolic	Power Plant (JOI20_power)	C++17	100 / 100	404 ms	28936 KiB

power

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#include <bits/stdc++.h>
#define rep(i, a, n) for(int (i) = (a); (i) < (n); ++(i))
using namespace std;
const int N = 2e5 + 50;
int n;
vector<int> graph[N];
string s;
int dp[N];
int sol = 0;
int rek(int v, int p) {
        int sum = 0, mx = 0, cnt = 0;
        for(auto n : graph[v]) {
                if(n == p) continue;
                int val = rek(n, v);
                if(val) cnt++;
                sum += val;
                mx = max(mx, val);
        }
        //if(s[v] == '0' || cnt > 1) dp[v] = max(s[v] - '0', sum - s[v] + '0');
        //else dp[v] = max(1, sum);
        dp[v] = max(s[v] - '0', sum - (s[v] - '0'));
        if(s[v] == '1') {
 
 
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컴파일 시 표준 에러 (stderr) 메시지

power.cpp: In function 'int main()':
power.cpp:3:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    3 | #define rep(i, a, n) for(int (i) = (a); (i) < (n); ++(i))
      |                              ^
power.cpp:41:9: note: in expansion of macro 'rep'
   41 |         rep(i, 0, n - 1) {
      |         ^~~

• Subtask 1: 6 / 6
• Subtask 2: 41 / 41
• Subtask 3: 53 / 53