Submission #25811

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
25811	2017-06-24 08:04:58	tlwpdus	전압 (JOI14_voltage)	C++98	100 / 100	366 ms	25160 KiB

voltage

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#include <bits/stdc++.h>
using namespace std;
typedef pair<int,int> pii;
int n, m;
vector<int> lis[100100];
vector<int> id[100100];
int color[100100];
int s[100100], e[100100], son[200100];
int rev[200100];
bool visit[100100];
int tt, odd;
int od[200100], ev[200100];
void dfs(int here, int col, int ep) {
    int i;
    s[here] = tt;
    tt++;
    color[here] = col;
    for (i=0;i<lis[here].size();i++) {
        int there = lis[here][i];
        if (id[here][i]==ep) continue;
        if (color[there]) {
            if (s[there]>s[here]) continue;
            rev[id[here][i]] = ((color[here]==color[there])?1:2);
            if (color[here]==color[there]) odd++;
            int *p = ((color[here]==color[there])?od:ev);
            p[here]++; p[there]--;
 
 
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Compilation message (stderr)

voltage.cpp: In function 'void dfs(int, int, int)':
voltage.cpp:22:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i=0;i<lis[here].size();i++) {
               ^
voltage.cpp: In function 'void fdfs(int, int)':
voltage.cpp:43:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i=0;i<lis[here].size();i++) {
               ^
voltage.cpp: In function 'int main()':
voltage.cpp:56:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&m);
                        ^
voltage.cpp:59:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d",&a,&b);
                            ^

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 35 / 35
• Subtask 4: 45 / 45