#include<bits/stdc++.h>
#define ll long long
#define F first
#define S second
#define in insert
#define pb push_back
#define ppb pop_back()
#define d3 ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define cans cout << ans << "\n";
#define yes cout << "Yes" << "\n";
#define no cout << "No" << "\n";
#define pll pair<ll,ll>
#define lin cout << "\n";
#define sqr 340
#define mod 1000000007
#define mid ((l+r)/2)
#define lc (2*n)
#define rc (2*n+1)
using namespace std;
ll fp(ll x , ll y)
{
if(y==0)
return 1;
ll z = fp(x,y/2);
if(y&1)
return z*z*x;
else
return z*z;
}
int sqrot(ll x)
{
int l = 0 , r = INT_MAX;
while(l<=r)
{
if(mid*mid>=x)
r=mid-1;
else
l=mid+1;
}
return r+1;
}
ll cel(ll x , ll y)
{
return x/y + bool(x%y);
}
string tb(ll x)
{
string s = "";
while(x>0)
{
if(x&1)
s+='1';
else
s+='0';
x/=2;
}
while(s.size()<60)
s+='0';
return s;
}
ll fb(string s)
{
ll x = 0;
ll c = 1;
for(int8_t i = 0 ; 60>i ; i++)
{
if(s[i]=='1')
x+=c;
c*=2;
}
return x;
}
ll n , m;
vector<ll> adj[100009];
vector<ll> v;
bool vis[100009];
ll sz;
ll st[100009];
ll ans;
void dfs(ll n , ll p)
{
vis[n]=1;
sz++;
st[n]=1;
for(auto it : adj[n])
{
if(it==p)
continue;
dfs(it,n);
st[n]+=st[it];
}
}
void dpt(ll n , ll p)
{
ans+=(sz-st[n])*(st[n]-1);
for(auto it : adj[n])
{
if(it==p)
continue;
ans+=(sz-1-st[it])*(st[it]);
dpt(it,n);
}
}
int main()
{
cin >> n >> m;
for(int i = 0 ; m>i ; i++)
{
ll u , v;
cin >> u >> v;
adj[u].pb(v);
adj[v].pb(u);
}
for(int i = 1 ; n>=i ; i++)
{
if(vis[i])
continue;
sz=0;
dfs(i,0);
dpt(i,0);
}
cans
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
893 ms |
1048576 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
893 ms |
1048576 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1064 ms |
804108 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
3416 KB |
Output is correct |
2 |
Correct |
1 ms |
3420 KB |
Output is correct |
3 |
Correct |
2 ms |
3420 KB |
Output is correct |
4 |
Correct |
2 ms |
3420 KB |
Output is correct |
5 |
Correct |
2 ms |
3420 KB |
Output is correct |
6 |
Correct |
1 ms |
3420 KB |
Output is correct |
7 |
Correct |
1 ms |
3420 KB |
Output is correct |
8 |
Correct |
1 ms |
3420 KB |
Output is correct |
9 |
Correct |
2 ms |
3752 KB |
Output is correct |
10 |
Correct |
2 ms |
3420 KB |
Output is correct |
11 |
Correct |
2 ms |
3420 KB |
Output is correct |
12 |
Correct |
1 ms |
3420 KB |
Output is correct |
13 |
Correct |
2 ms |
3420 KB |
Output is correct |
14 |
Correct |
2 ms |
3420 KB |
Output is correct |
15 |
Correct |
2 ms |
3420 KB |
Output is correct |
16 |
Correct |
1 ms |
3492 KB |
Output is correct |
17 |
Correct |
1 ms |
3416 KB |
Output is correct |
18 |
Correct |
2 ms |
3420 KB |
Output is correct |
19 |
Correct |
1 ms |
3420 KB |
Output is correct |
20 |
Correct |
1 ms |
3420 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
76 ms |
8524 KB |
Output is correct |
2 |
Correct |
57 ms |
8528 KB |
Output is correct |
3 |
Correct |
56 ms |
8508 KB |
Output is correct |
4 |
Correct |
57 ms |
8452 KB |
Output is correct |
5 |
Correct |
57 ms |
8532 KB |
Output is correct |
6 |
Correct |
72 ms |
11248 KB |
Output is correct |
7 |
Correct |
61 ms |
10600 KB |
Output is correct |
8 |
Correct |
63 ms |
10124 KB |
Output is correct |
9 |
Correct |
61 ms |
9508 KB |
Output is correct |
10 |
Correct |
62 ms |
8464 KB |
Output is correct |
11 |
Correct |
58 ms |
8444 KB |
Output is correct |
12 |
Correct |
57 ms |
8600 KB |
Output is correct |
13 |
Correct |
70 ms |
8400 KB |
Output is correct |
14 |
Correct |
53 ms |
8284 KB |
Output is correct |
15 |
Correct |
45 ms |
7760 KB |
Output is correct |
16 |
Correct |
34 ms |
6572 KB |
Output is correct |
17 |
Correct |
55 ms |
8648 KB |
Output is correct |
18 |
Correct |
51 ms |
8772 KB |
Output is correct |
19 |
Correct |
56 ms |
8828 KB |
Output is correct |
20 |
Correct |
49 ms |
8772 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
3416 KB |
Output is correct |
2 |
Correct |
2 ms |
3420 KB |
Output is correct |
3 |
Runtime error |
703 ms |
1048576 KB |
Execution killed with signal 9 |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
68 ms |
8628 KB |
Output is correct |
2 |
Correct |
57 ms |
8436 KB |
Output is correct |
3 |
Runtime error |
754 ms |
1048576 KB |
Execution killed with signal 9 |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
893 ms |
1048576 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
893 ms |
1048576 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |