#include #pragma GCC optimize("Ofast") #pragma GCC oprimize("unrol-loops") #define vec vector #define fi first #define se second #define all(x) (x).begin(), (x).end() #define int long long using namespace std; typedef pair pii; const int inf = 2e18; int mod = 100000007; void solve(){ int n,m,c; cin>>n>>m>>c; vector > a(m+1); for(int i=0;i>x>>y; if(a[x].fi+a[x].se