Submission #172748

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
172748	2020-01-02 14:12:59	nicolaalexandra	One-Way Streets (CEOI17_oneway)	C++14	100 / 100	1072 ms	84716 KiB

oneway

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <bits/stdc++.h>
#define DIM 100010
using namespace std;
int whatChain[DIM],positionInChain[DIM],chainFatherNode[DIM],level[DIM],Size[DIM];
int viz[DIM],low[DIM],niv[DIM],b[DIM],E[DIM*3],first[DIM];
pair <int,int> rmq[20][DIM*3],mch[DIM];
vector <int> chains[DIM],L[DIM],edg[DIM],aint[DIM];
map < pair<int,int>, int > mch_critica,cnt;
deque <int> s;
int n,m,p,i,j,x,y,k,lca;
int nr_chains;
void dfs (int nod, int tata){
    viz[nod] = 1;
    low[nod] = niv[nod] = 1+niv[tata];
    s.push_back (nod);
    for (auto vecin:edg[nod]){
        if (vecin == tata)
            continue;
        if (viz[vecin])
            low[nod] = min (low[nod],niv[vecin]);
        else {
            dfs (vecin,nod);
            low[nod] = min (low[nod],low[vecin]);
            if (low[vecin] >= niv[nod]){
                int x, cnt = 1;
                do{
                    cnt++;
                    x = s.back();
                    s.pop_back();
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

oneway.cpp: In function 'int main()':
oneway.cpp:188:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (j=0;j<=4*chains[i].size();j++)
                  ~^~~~~~~~~~~~~~~~~~~~
oneway.cpp: In function 'int query_aint(int, int, int, int, int)':
oneway.cpp:101:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

• Subtask 1: 30 / 30
• Subtask 2: 30 / 30
• Subtask 3: 40 / 40