[C++] 1010 - 다리 놓기

문제 링크 : https://www.acmicpc.net/problem/1010

1010번: 다리 놓기

 

 

 

#include<iostream>
#include<algorithm>
#define endl '\n'
 
using namespace std;
 
unsigned int dp[35][35];
 
int main(void)
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
 
    dp[0][0] = 1;
    for(int i = 0; i < 30; ++i)
        dp[i][0] = dp[i][i] = 1;
    
    for(int i = 2; i < 30; ++i)
    {
        for(int j = 1; j < i; ++j)
        {
            unsigned int tmp = 0;
            for(int z = 0; z < i; ++z)
                tmp += dp[z][j-1];
            dp[i][j] = tmp;
 
        }
    }
 
    int t;
    int v1, v2;
    cin >> t;
    while(t--)
    {
        cin >> v1 >> v2;
        if(v2 > v1)
            swap(v1, v2);
        cout << dp[v1][v2] << endl;
    }
 
    return 0;
}