oj.uz

Submission #976414

# Submission time Handle Problem Language Result Execution time Memory
976414 2024-05-06T14:36:53 Z vjudge1 Star triangles (IZhO11_triangle) C++17
0 / 100
 1 ms 604 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int main()
{
    int q;
    cin >> q;
    
    while (q--) {
    	ll l, r;
    	cin >> l >> r;
    	int ans = 0;
    	
    	
    	ll selisih = (r-l)/9;
    	int sisa = (r-l)%9;
    	int hah = l%9;
    	
    	for (int i=hah;i<=8+hah;i++) {
    		ans += i*selisih;
		}
    	
		for (int i=hah;i<=(hah)+sisa;i++) {
			ans += i;
		}
			
    	cout << ans << endl;
	}
    
    
    
    
    return 0;
}

Subtask #1
0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 604 KB Output isn't correct
2 Halted 0 ms 0 KB -