Submission #251483

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
251483	2020-07-21 11:57:10	VEGAnn	Ili (COI17_ili)	C++14	100 / 100	637 ms	2296 KiB

ili

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#include <bits/stdc++.h>
#define PB push_back
using namespace std;
const int N = 20100;
vector<int> bck[N], to[N];
int n, m;
string s, t;
bool was[N];
void down(int v){
    s[v] = '0';
    for (int u : bck[v])
        down(u);
}
bool noone(int v){
    if (v >= m) return (s[v] - '0');
    int res = 0;
    for (int u : bck[v])
        res |= noone(u);
    return res;
}
void mark_all(int v){
    if (v >= m) t[v] = '0';
 
 
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• Subtask 1: 7 / 7
• Subtask 2: 42 / 42
• Subtask 3: 51 / 51