Submission #16516

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
16516	2015-08-27 01:10:29	khsoo01	Race (IOI11_race)	C++98	100 / 100	1247 ms	48368 KiB

race

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>
#include "race.h"
#define INF 987654321
using namespace std;
vector<int>cg[200005],cv[200005];
stack<int>used;
int ch[200005],p[1000005],n,cn,k,ans=INF;
bool col[200005];
void count_num(int idx,int prev) {
    int i; cn++;
    for(i=0;i<cg[idx].size();i++) {
        if(!col[cg[idx][i]] && cg[idx][i]!=prev) {
            count_num(cg[idx][i],idx);
        }
    }
}
pair<int,int> find_cen(int idx,int prev) {
    pair<int,int> ret(INF,-1),tmp;
    int i,cc=1,mc=0;
    for(i=0;i<cg[idx].size();i++) {
        if(col[cg[idx][i]] || cg[idx][i]==prev) continue;
        tmp=find_cen(cg[idx][i],idx);
        if(tmp.first<ret.first) ret=tmp;
        mc=max(mc,ch[cg[idx][i]]);
        cc+=ch[cg[idx][i]];
    }
    mc=max(mc,cn-cc);
    if(mc<ret.first) ret={mc,idx};
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

race.cpp: In function 'void count_num(int, int)':
race.cpp:12:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=0;i<cg[idx].size();i++) {
             ~^~~~~~~~~~~~~~~
race.cpp: In function 'std::pair<int, int> find_cen(int, int)':
race.cpp:22:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=0;i<cg[idx].size();i++) {
             ~^~~~~~~~~~~~~~~
race.cpp: In function 'void match(int, int, int, int)':
race.cpp:38:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=0;i<cg[idx].size();i++) {
             ~^~~~~~~~~~~~~~~
race.cpp: In function 'void apply(int, int, int, int)':
race.cpp:48:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=0;i<cg[idx].size();i++) {
             ~^~~~~~~~~~~~~~~
race.cpp: In function 'void dnc(int)':
race.cpp:60:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=0;i<cg[cen].size();i++) {
             ~^~~~~~~~~~~~~~~
race.cpp:66:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=0;i<cg[cen].size();i++) {
             ~^~~~~~~~~~~~~~~

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