Rectangle.cpp

#include "bits/stdc++.h"
// #include <bits/stdc++.h>
using namespace std;
int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    int a,b;
    cin>>a>>b;
    vector<vector<int> > dp(a+1,vector<int>(b+1,100000));
    for(int i=1;i<=min(a,b);i++){
        dp[i][i]=0;
    }
    for(int i=1;i<=a;i++){
        for(int j=1;j<=b;j++){
            if (i == j) {
                dp[i][j] = 0;
            } else {
                for (int k = 1; k < i; k++) {
                    dp[i][j] = min(dp[i][j], dp[k][j] + dp[i - k][j] + 1);
                }
                for (int k = 1; k < j; k++) {
                    dp[i][j] = min(dp[i][j], dp[i][k] + dp[i][j - k] + 1);
                }
            }
        }
    }
    cout<<dp[a][b]<<endl;
    return 0;
}