Submission #1161567

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1161567	2025-03-04 13:37:41	Aviansh	Swapping Cities (APIO20_swap)	C++20	37 / 100	2094 ms	8324 KiB

swap

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#include "swap.h"
#include <bits/stdc++.h>
using namespace std;
struct dsu{
    vector<int>root;
    vector<int>siz;
    vector<int>valtime;
    vector<int>lastroot;
    dsu(int n){
        root = vector<int>(n);
        iota(root.begin(),root.end(),0);
        siz=vector<int>(n,1);
        valtime = vector<int>(n,1e9);
        lastroot = vector<int>(n,-1);
    }
    void makeVal(int x, int tim){
        x=findRoot(x);
        valtime[x]=min(valtime[x],tim);
    }
    bool unite(int x, int y, int tim){
        x=findRoot(x);
        y=findRoot(y);
        //cout << "turned into " << x << " " << y << "\n";
        if(x==y){
            makeVal(x,tim);
            //cout << "cycle found\n";
            return 0;
 
 
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