Submission #55723

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
55723	2018-07-08 16:48:29	mohammad_kilani	Duathlon (APIO18_duathlon)	C++17	31 / 100	174 ms	23032 KiB

count_triplets

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#include <bits/stdc++.h>
using namespace std;
#define mod 1000000007
#define oo 1000000000
const int N = 100010;
int n , m , u , v , dfs_low[N] , dfs_num[N] , dfs_cnt = 0 , all[N], comp[N] , comp_cnt = 0;
vector< int > g[N] ; 
bool vis[N];
long long ans = 0 , A , B;
void DFS2(int node){
    vis[node] = true;
    comp[node] = comp_cnt;
    all[comp_cnt]++;
    for(int i=0;i<g[node].size();i++){
        if(!vis[g[node][i]])
            DFS2(g[node][i]);
    }
}
pair<int,pair<int,pair<long long,int> > > DFS(int node,int prnt){
    dfs_low[node] = dfs_num[node] = ++dfs_cnt;
    int num1 = 1 , num2 = 1 , num3 = all[comp[node]] - 1, num5 = 0;
    long long num4 = 0;
    pair<int,pair<int,pair<long long,int> > > tmp;
    for(int i=0;i<g[node].size();i++){
        if(g[node][i] == prnt) continue;
        if(dfs_num[g[node][i]] != 0){
            dfs_low[node] = min(dfs_low[node],dfs_num[g[node][i]]);
            continue;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

count_triplets.cpp: In function 'void DFS2(int)':
count_triplets.cpp:15:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<g[node].size();i++){
                 ~^~~~~~~~~~~~~~~
count_triplets.cpp: In function 'std::pair<int, std::pair<int, std::pair<long long int, int> > > DFS(int, int)':
count_triplets.cpp:26:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<g[node].size();i++){
                 ~^~~~~~~~~~~~~~~
count_triplets.cpp: In function 'int main()':
count_triplets.cpp:64:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&m);
     ~~~~~^~~~~~~~~~~~~~
count_triplets.cpp:66:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d",&u,&v);
         ~~~~~^~~~~~~~~~~~~~

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