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Submission #253585

# Submission time Handle Problem Language Result Execution time Memory
253585 2020-07-28T11:16:17 Z egekabas Trol (COCI19_trol) C++14
50 / 50
 1 ms 384 KB 
#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<ull, ull> pull;
typedef pair<ll, ll> pii;
typedef pair<ld, ld> pld;
ll get(ll x){
    ll ret = x/9*45;
    for(ll i = 1; i <= x%9; ++i)
        ret += i;
    return ret;
}
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    
    //freopen("in.txt", "r", stdin);
    //freopen("out.txt", "w", stdout);
    
    ll q;
    cin >> q;
    while(q--){
        ll l, r;
        cin >> l >> r;
        cout << get(r)-get(l-1) << '\n';
    }
}

Subtask #1
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct