#include "swap.h"
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define F first
#define S second
#define mk make_pair
int i,n,m,b[300000],t[300000],sz[300000],a[300000];
pair<int , pair<int , int>> p[300000];
void init(int N, int M, vector <int> U, vector <int> V, vector <int> W) {
n = N;
m = M;
for (i=0 ; i<m ; i++){
p[i].first=W[i];
p[i].second.first=U[i];
p[i].second.second=V[i];
}
sort (p,p+m);
}
int fnd(int xx){
if(xx==t[xx]){
return xx;
}
else return t[xx]=fnd(t[xx]);
}
void negtge( int x , int y){
x=fnd(x);
y=fnd(y);
if(sz[x] < sz[y]){
swap(x,y);
}
sz[x]+=sz[y];
if(b[y]==1){
b[x]=1;
}
t[y]=x;
}
int getMinimumFuelCapacity(int u, int v){
for(i=0 ; i<n ; i++){
t[i]=i;
sz[i]=1;
b[i]=0;
a[i]=0;
}
for(i=0 ; i<m ; i++){
x=p[i].second.first;
y=p[i].second.second;
a[x]++;
a[y]++;
if(fnd(x)==fnd(y) || a[x]>2 || a[y]>2){
b[fnd(x)]=1;
b[fnd(y)]=1;
}
negtge(x,y);
if(fnd(u)==fnd(v) && b[fnd(u)]==1){
return p[i].first;
}
}
return -1;
}
Compilation message
swap.cpp: In function 'int getMinimumFuelCapacity(int, int)':
swap.cpp:49:3: error: 'x' was not declared in this scope
49 | x=p[i].second.first;
| ^
swap.cpp:50:9: error: 'y' was not declared in this scope
50 | y=p[i].second.second;
| ^
