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Submission #797902

# Submission time Handle Problem Language Result Execution time Memory
797902 2023-07-30T05:48:30 Z vjudge1 Worst Reporter 3 (JOI18_worst_reporter3) C++17
100 / 100
 276 ms 13156 KB 
#include<bits/stdc++.h>

using namespace std;
using ll = long long;

const int M = 1e3 + 10;
const int N = 5e5 + 10;

int n, q;
ll d[N];

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    cin >> n >> q;
    for(int i = 1; i <= n; i++) 
        cin >> d[i];
    ll D[n + 1] = {};
    D[0] = 1;
    for(int i = 1; i <= n; i++) 
        D[i] = D[i - 1] * ((d[i] + D[i - 1] - 1)/ D[i - 1]);
    int nxt[n + 1] = {};
    nxt[n] = n + 1;
    for(int i = n - 1; i >= 0; i--) {
        nxt[i] = (D[i] == D[i + 1] ? nxt[i + 1] : i + 1);
    }
    // for(int i = 0; i <= n; i++) 
    //     cout << D[i] << ' ';
    // cout << '\n';
    for(int i = 1; i <= q; i++) {
        ll t, l, r;
        cin >> t >> l >> r;
        int x = 1, pos = t;
        ll ans = (l <= t && t <= r);
        while(x <= n) {
            ll pos_r = -x + (pos + x - 1) / D[x] * D[x];
            ll pos_l = pos_r - (nxt[x] - 1 - x);
            
            // cout << x << ' ' << nxt[x] << '\n';
            // cout << pos_l << ' ' << pos_r << '\n';

            ll lb = max(pos_l, l), rb = min(pos_r, r);
            ans += max(rb - lb + 1, 0ll);
            pos = pos_l;
            x = nxt[x];
        }
        cout << ans << '\n';
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 182 ms 13104 KB Output is correct
2 Correct 172 ms 12984 KB Output is correct
3 Correct 183 ms 13076 KB Output is correct
4 Correct 169 ms 13088 KB Output is correct
5 Correct 175 ms 12996 KB Output is correct
6 Correct 173 ms 13028 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct

Subtask #3
81.0 / 81.0

# Verdict Execution time Memory Grader output
1 Correct 182 ms 13104 KB Output is correct
2 Correct 172 ms 12984 KB Output is correct
3 Correct 183 ms 13076 KB Output is correct
4 Correct 169 ms 13088 KB Output is correct
5 Correct 175 ms 12996 KB Output is correct
6 Correct 173 ms 13028 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 168 ms 11044 KB Output is correct
14 Correct 172 ms 11012 KB Output is correct
15 Correct 168 ms 11028 KB Output is correct
16 Correct 170 ms 11028 KB Output is correct
17 Correct 255 ms 12492 KB Output is correct
18 Correct 248 ms 12496 KB Output is correct
19 Correct 257 ms 12440 KB Output is correct
20 Correct 257 ms 12496 KB Output is correct
21 Correct 249 ms 12492 KB Output is correct
22 Correct 252 ms 12456 KB Output is correct
23 Correct 276 ms 12532 KB Output is correct
24 Correct 251 ms 12460 KB Output is correct
25 Correct 174 ms 13032 KB Output is correct
26 Correct 192 ms 13156 KB Output is correct
27 Correct 256 ms 12948 KB Output is correct
28 Correct 275 ms 12836 KB Output is correct
29 Correct 274 ms 12800 KB Output is correct
30 Correct 275 ms 12876 KB Output is correct
31 Correct 269 ms 12820 KB Output is correct
32 Correct 169 ms 12492 KB Output is correct
33 Correct 0 ms 212 KB Output is correct