oj.uz

Submission #715014

# Submission time Handle Problem Language Result Execution time Memory
715014 2023-03-25T18:11:04 Z Ahmed57 Senior Postmen (BOI14_postmen) C++14
100 / 100
 368 ms 87952 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")

using namespace std;
int in(){
	char c=getchar_unlocked();
	while(c<'0'||c>'9')
		c=getchar_unlocked();
	int r=0;
	while(c>='0'&&c<='9') {
		r=r*10+c-'0';
		c=getchar_unlocked();
	}
	return r;
}

void out(int x) {
	int lz=0, r=0;
	while(x%10==0) {
		++lz;
		x/=10;
	}
	while(x) {
		r=r*10+x%10;
		x/=10;
	}
	while(r) {
		putchar_unlocked('0'+r%10);
		r/=10;
	}
	while(lz--)
		putchar_unlocked('0');
}

int vised[500001];
int vis[500001];
vector<pair<int,int>>adj[500001];
stack<int> s;
vector<vector<int>> all;
int str= 0;
void dfs(int i){
    s.push(i);
    if(vis[i]){
        vector<int>a;a.push_back(s.top());
        s.pop();
        while(s.top()!=i){
            a.push_back(s.top());
            s.pop();
        }
        all.push_back(a);
        str = a.size()-1;
        return;
    }
    vis[i] =1;
    for(auto j:adj[i]){
        if(vised[j.second])continue;
        vised[j.second] = 1;
        dfs(j.first);
        if(str){
            vis[i] =0;
            str--;
            return ;
        }
    }
    vis[i] = 0;
    if(s.size())s.pop();
}
signed main(){
    int n = in();int m=in();
    for(int i = 0;i<m;i++){
        int a=in();int b=in();
        adj[a].push_back({b,i});
        adj[b].push_back({a,i});
    }
    for(int i = 1;i<=n;i++){
        dfs(i);
    }
    for(auto i:all){
        for(auto j:i){out(j);putchar_unlocked(' ');}
        putchar_unlocked('\n');
    }
    return 0;
}

Subtask #1
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 11988 KB Output is correct
2 Correct 6 ms 12000 KB Output is correct
3 Correct 6 ms 11996 KB Output is correct
4 Correct 7 ms 12224 KB Output is correct
5 Correct 7 ms 11988 KB Output is correct
6 Correct 7 ms 12116 KB Output is correct
7 Correct 9 ms 12628 KB Output is correct
8 Correct 7 ms 12372 KB Output is correct
9 Correct 37 ms 15180 KB Output is correct
10 Correct 7 ms 12116 KB Output is correct
11 Correct 6 ms 12276 KB Output is correct
12 Correct 25 ms 15572 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 11988 KB Output is correct
2 Correct 6 ms 11988 KB Output is correct
3 Correct 6 ms 11988 KB Output is correct
4 Correct 7 ms 12116 KB Output is correct
5 Correct 6 ms 11988 KB Output is correct
6 Correct 8 ms 12116 KB Output is correct
7 Correct 9 ms 12628 KB Output is correct
8 Correct 7 ms 12332 KB Output is correct
9 Correct 38 ms 15160 KB Output is correct
10 Correct 7 ms 12116 KB Output is correct
11 Correct 7 ms 12244 KB Output is correct
12 Correct 26 ms 15608 KB Output is correct
13 Correct 47 ms 27020 KB Output is correct
14 Correct 34 ms 17352 KB Output is correct
15 Correct 37 ms 17884 KB Output is correct
16 Correct 45 ms 27072 KB Output is correct
17 Correct 41 ms 17940 KB Output is correct
18 Correct 46 ms 19932 KB Output is correct

Subtask #3
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 11988 KB Output is correct
2 Correct 6 ms 11988 KB Output is correct
3 Correct 6 ms 12028 KB Output is correct
4 Correct 7 ms 12160 KB Output is correct
5 Correct 6 ms 11988 KB Output is correct
6 Correct 7 ms 12220 KB Output is correct
7 Correct 9 ms 12628 KB Output is correct
8 Correct 8 ms 12356 KB Output is correct
9 Correct 37 ms 15140 KB Output is correct
10 Correct 7 ms 12116 KB Output is correct
11 Correct 7 ms 12212 KB Output is correct
12 Correct 26 ms 15616 KB Output is correct
13 Correct 41 ms 27056 KB Output is correct
14 Correct 39 ms 17356 KB Output is correct
15 Correct 36 ms 17788 KB Output is correct
16 Correct 48 ms 27056 KB Output is correct
17 Correct 46 ms 17924 KB Output is correct
18 Correct 44 ms 19992 KB Output is correct
19 Correct 347 ms 87952 KB Output is correct
20 Correct 254 ms 39416 KB Output is correct
21 Correct 248 ms 40192 KB Output is correct
22 Correct 326 ms 87824 KB Output is correct
23 Correct 368 ms 26576 KB Output is correct
24 Correct 354 ms 46912 KB Output is correct
25 Correct 323 ms 57476 KB Output is correct