Submission #63015

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
63015	2018-07-31 09:51:20	zubec	Race (IOI11_race)	C++14	100 / 100	1818 ms	80492 KiB

race

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#include "race.h"
#include <bits/stdc++.h>
using namespace std;
const int N = 200100;
vector <pair<int, int> > g[200100];
int needLen, n, sz[N], pr[N];
bool used[N];
int ans = 1e9;
map<int, int> mp1;
int fnd_cntr(int v, int p, int szcmp){
    int pos = -1;
    bool bb = 0;
    for (int i = 0; i < g[v].size(); i++){
        int to = g[v][i].first;
        if (to == p || used[to])
            continue;
        if (sz[to]-1 >= szcmp/2){
            bb = 1;
            pos = to;
            break;
        }
    }
    if (bb == 0)
        return v;
    return fnd_cntr(pos, v, szcmp);
 
 
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Compilation message (stderr)

race.cpp: In function 'int fnd_cntr(int, int, int)':
race.cpp:18:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < g[v].size(); i++){
                     ~~^~~~~~~~~~~~~
race.cpp: In function 'void dfs1(int, int, int, int)':
race.cpp:39:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < g[v].size(); i++){
                     ~~^~~~~~~~~~~~~
race.cpp: In function 'void dfs2(int, int, int, int)':
race.cpp:52:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < g[v].size(); i++){
                     ~~^~~~~~~~~~~~~
race.cpp: In function 'void build(int, int)':
race.cpp:66:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < g[cntr].size(); i++){
                     ~~^~~~~~~~~~~~~~~~
race.cpp:76:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < g[cntr].size(); i++){
                     ~~^~~~~~~~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 22 / 22
• Subtask 4: 57 / 57