[백준 8912] Sales (C++/Python)

C++)

#include <iostream>
#include <vector>
using namespace std;

int main(void) {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);

	int t;
	cin >> t;

	while (t--) {
		int n, temp;
		cin >> n;

		vector<int> v;
		for (int i = 0; i < n; i++) {
			cin >> temp;
			v.push_back(temp);
		}

		int ans = 0;
		for (int i = 1; i < n; i++) {
			for (int j = 0; j < i; j++) {
				if (v[j] <= v[i])
					ans += 1;
			}
		}

		cout << ans << "\n";
	}
	return 0;
}

 

 

 

Python)

import sys

read = sys.stdin.readline

t = int(read().rstrip())

for _ in range(t):
    n = int(read().rstrip())
    a = list(map(int, read().rstrip().split()))
    ans = 0

    for idx, ele in enumerate(a[1:], start = 1):    
        for j in a[:idx]:
            ans += (1 if j <= ele else 0)
    
    print(ans)