Submission #98002

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
98002	2019-02-19 17:43:41	popovicirobert	One-Way Streets (CEOI17_oneway)	C++14	100 / 100	207 ms	22848 KiB

oneway

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#include <bits/stdc++.h>
#define lsb(x) (x & (-x))
#define ll long long
#define ull unsigned long long
#define ld long double
// 217
// 44
using namespace std;
const int MAXN = (int) 1e5;
vector < pair <int, int> > g[MAXN + 1];
int lvl[MAXN + 1], low[MAXN + 1];
int id[MAXN + 1], cnt;
stack <int> stk;
char sol[MAXN + 1];
void dfs(int nod, int par) {
    lvl[nod] = lvl[par] + 1;
    low[nod] = lvl[nod];
    stk.push(nod);
    bool ok = 0;
    for(auto it : g[nod]) {
        if(lvl[it.first] == 0) {
            dfs(it.first, nod);
            low[nod] = min(low[nod], low[it.first]);
            if(low[it.first] > lvl[nod]) {
                cnt++;
 
 
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• Subtask 1: 30 / 30
• Subtask 2: 30 / 30
• Subtask 3: 40 / 40