#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
typedef long long ll;
typedef double db;
typedef vector<long long> vl;
typedef pair<long long , long long > pl;
const int N=1e6+1;
#define po pop_back
#define pb push_back
#define mk make_pair
#define lw lower_bound
#define up upper_bound
#define ff first
#define ss second
#define boost ios_base::sync_with_stdio(); cin.tie(0); cout.tie(0);
#define MOD 1000000007
#define MAX 1e18
#define MIN -1e18
#define rep(i,a,b) for(ll i=a;i<=b;i++)
#define per(i,a,b) for(ll i=b;i>=a;i--)
#define con continue
#define freopen freopen("input.txt", "r", stdin);freopen("output.txt", "w", stdout);
#define PI 3.14159265358979323846264338327950288419716939937510582097494459230781640628
// typedef tree<ll , null_type, less<ll>, rb_tree_tag, tree_order_statistics_node_update> indexed_set;
// template< typename T>
// using indexed_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
ll sz,n,m,ans,mid,mn,mx,cnt,T,sum,h1,h2,e[1234567],b[1234567],c[1234567],d[1<<20],k,i,j,l,h,a[1234567],w,x,y,z;
bool used[1234567];
vector<ll> v[1234567];
vl vec;
void dfs(ll x, ll y){
d[x] = 1;
used[x] = 1;
for(auto u : v[x]){
if(u == y) continue;
if(used[u]){
c[u] = 1;
continue;
}
dfs(u , x);
d[x] += d[u];
}
}
void solve(ll x , ll y, ll sum){
ans += 2 * (d[x] - 1) * (sum - d[x]);
ll res = 0;
for(auto u : v[x]){
if(u == y) continue;
ans += 2 * d[y] * res;
res += d[y];
}
for(auto u : v[x]){
if(u == y) continue;
sovle(u , x, sum);
}
}
int main(){
cin>>n>>m;
for(ll i = 0; i < m; i++){
cin>>x>>y;
v[x].pb(y);
v[y].pb(x);
}
for(ll i = 1; i <= n; i++){
if(d[i] == 0) dfs(i , -1), vec.pb(i);
}
for(auto i : vec){
if(c[i]==0) solve(i , -1 , d[i]);
else ans += d[i] * (d[i] - 1) * (d[i] - 2);
}
cout<<ans;
}
Compilation message
count_triplets.cpp: In function 'void solve(ll, ll, ll)':
count_triplets.cpp:57:9: error: 'sovle' was not declared in this scope
sovle(u , x, sum);
^~~~~
count_triplets.cpp:57:9: note: suggested alternative: 'solve'
sovle(u , x, sum);
^~~~~
solve
