oj.uz

Submission #596852

# Submission time Handle Problem Language Result Execution time Memory
596852 2022-07-15T07:41:36 Z 박상훈(#8446) Fish 2 (JOI22_fish2) C++17
25 / 100
 4000 ms 3424 KB 
#include <bits/stdc++.h>

typedef long long ll;
using namespace std;
int n, a[100100], L[100100], R[100100];
ll S[100100];

int dnc(int l, int r, int m, ll need){
    ll ok = S[r] - S[l-1];
    if (ok < need) return 0;

    int ret = 1;
    if (l<m) ret += dnc(l, m-1, L[m], a[m]);
    if (m<r) ret += dnc(m+1, r, R[m], a[m]);
    return ret;
}

int query(int l, int r){
    vector<int> st;
    for (int i=l;i<=r;i++){
        while(!st.empty() && a[st.back()] <= a[i]){
            int j = st.back(); st.pop_back();
            int tmp = st.empty()?1e9+100:a[st.back()];
            if (tmp<=a[i]) R[st.back()] = j;
            else L[i] = j;
        }
        st.push_back(i);
    }

    int mx = st[0];
    while(!st.empty()){
        int j = st.back(); st.pop_back();
        if (!st.empty()) R[st.back()] = j;
    }
    return dnc(l, r, mx, 0);
}

void update(int p, int x){
    a[p] = x;
    for (int i=p;i<=n;i++) S[i] = S[i-1] + a[i];
}

int main(){
    scanf("%d", &n);
    for (int i=1;i<=n;i++) scanf("%d", a+i);
    for (int i=1;i<=n;i++) S[i] = S[i-1] + a[i];

    int q;
    scanf("%d", &q);
    while(q--){
        int op, x, y;
        scanf("%d %d %d", &op, &x, &y);
        if (op==1) update(x, y);
        else printf("%d\n", query(x, y));
    }
    return 0;
}

Compilation message

fish2.cpp: In function 'int main()':
fish2.cpp:44:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   44 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
fish2.cpp:45:33: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   45 |     for (int i=1;i<=n;i++) scanf("%d", a+i);
      |                            ~~~~~^~~~~~~~~~~
fish2.cpp:49:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   49 |     scanf("%d", &q);
      |     ~~~~~^~~~~~~~~~
fish2.cpp:52:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   52 |         scanf("%d %d %d", &op, &x, &y);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 2 ms 212 KB Output is correct
10 Correct 2 ms 340 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 2 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 2 ms 340 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 15 ms 2732 KB Output is correct
3 Correct 10 ms 2496 KB Output is correct
4 Correct 18 ms 2704 KB Output is correct
5 Correct 10 ms 2476 KB Output is correct
6 Correct 17 ms 3128 KB Output is correct
7 Correct 9 ms 2388 KB Output is correct
8 Correct 14 ms 3136 KB Output is correct
9 Correct 9 ms 2388 KB Output is correct
10 Correct 12 ms 2772 KB Output is correct
11 Correct 11 ms 2516 KB Output is correct
12 Correct 10 ms 2496 KB Output is correct
13 Correct 10 ms 2496 KB Output is correct
14 Correct 12 ms 3156 KB Output is correct
15 Correct 13 ms 3132 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 2 ms 212 KB Output is correct
10 Correct 2 ms 340 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 2 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 2 ms 340 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 15 ms 2732 KB Output is correct
23 Correct 10 ms 2496 KB Output is correct
24 Correct 18 ms 2704 KB Output is correct
25 Correct 10 ms 2476 KB Output is correct
26 Correct 17 ms 3128 KB Output is correct
27 Correct 9 ms 2388 KB Output is correct
28 Correct 14 ms 3136 KB Output is correct
29 Correct 9 ms 2388 KB Output is correct
30 Correct 12 ms 2772 KB Output is correct
31 Correct 11 ms 2516 KB Output is correct
32 Correct 10 ms 2496 KB Output is correct
33 Correct 10 ms 2496 KB Output is correct
34 Correct 12 ms 3156 KB Output is correct
35 Correct 13 ms 3132 KB Output is correct
36 Correct 154 ms 3020 KB Output is correct
37 Correct 218 ms 2576 KB Output is correct
38 Correct 165 ms 2516 KB Output is correct
39 Correct 152 ms 2960 KB Output is correct
40 Correct 192 ms 2616 KB Output is correct
41 Correct 489 ms 3228 KB Output is correct
42 Correct 590 ms 3424 KB Output is correct
43 Correct 291 ms 2388 KB Output is correct
44 Correct 324 ms 2432 KB Output is correct
45 Correct 165 ms 2812 KB Output is correct
46 Correct 219 ms 2828 KB Output is correct
47 Correct 212 ms 2532 KB Output is correct
48 Correct 201 ms 2504 KB Output is correct
49 Correct 381 ms 2588 KB Output is correct
50 Correct 292 ms 3188 KB Output is correct
51 Correct 1033 ms 3276 KB Output is correct
52 Correct 1057 ms 3236 KB Output is correct

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 15 ms 2732 KB Output is correct
3 Correct 10 ms 2496 KB Output is correct
4 Correct 18 ms 2704 KB Output is correct
5 Correct 10 ms 2476 KB Output is correct
6 Correct 17 ms 3128 KB Output is correct
7 Correct 9 ms 2388 KB Output is correct
8 Correct 14 ms 3136 KB Output is correct
9 Correct 9 ms 2388 KB Output is correct
10 Correct 12 ms 2772 KB Output is correct
11 Correct 11 ms 2516 KB Output is correct
12 Correct 10 ms 2496 KB Output is correct
13 Correct 10 ms 2496 KB Output is correct
14 Correct 12 ms 3156 KB Output is correct
15 Correct 13 ms 3132 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Execution timed out 4048 ms 3304 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 15 ms 2732 KB Output is correct
3 Correct 10 ms 2496 KB Output is correct
4 Correct 18 ms 2704 KB Output is correct
5 Correct 10 ms 2476 KB Output is correct
6 Correct 17 ms 3128 KB Output is correct
7 Correct 9 ms 2388 KB Output is correct
8 Correct 14 ms 3136 KB Output is correct
9 Correct 9 ms 2388 KB Output is correct
10 Correct 12 ms 2772 KB Output is correct
11 Correct 11 ms 2516 KB Output is correct
12 Correct 10 ms 2496 KB Output is correct
13 Correct 10 ms 2496 KB Output is correct
14 Correct 12 ms 3156 KB Output is correct
15 Correct 13 ms 3132 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Execution timed out 4067 ms 3128 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 2 ms 212 KB Output is correct
10 Correct 2 ms 340 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 2 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 2 ms 340 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 15 ms 2732 KB Output is correct
23 Correct 10 ms 2496 KB Output is correct
24 Correct 18 ms 2704 KB Output is correct
25 Correct 10 ms 2476 KB Output is correct
26 Correct 17 ms 3128 KB Output is correct
27 Correct 9 ms 2388 KB Output is correct
28 Correct 14 ms 3136 KB Output is correct
29 Correct 9 ms 2388 KB Output is correct
30 Correct 12 ms 2772 KB Output is correct
31 Correct 11 ms 2516 KB Output is correct
32 Correct 10 ms 2496 KB Output is correct
33 Correct 10 ms 2496 KB Output is correct
34 Correct 12 ms 3156 KB Output is correct
35 Correct 13 ms 3132 KB Output is correct
36 Correct 154 ms 3020 KB Output is correct
37 Correct 218 ms 2576 KB Output is correct
38 Correct 165 ms 2516 KB Output is correct
39 Correct 152 ms 2960 KB Output is correct
40 Correct 192 ms 2616 KB Output is correct
41 Correct 489 ms 3228 KB Output is correct
42 Correct 590 ms 3424 KB Output is correct
43 Correct 291 ms 2388 KB Output is correct
44 Correct 324 ms 2432 KB Output is correct
45 Correct 165 ms 2812 KB Output is correct
46 Correct 219 ms 2828 KB Output is correct
47 Correct 212 ms 2532 KB Output is correct
48 Correct 201 ms 2504 KB Output is correct
49 Correct 381 ms 2588 KB Output is correct
50 Correct 292 ms 3188 KB Output is correct
51 Correct 1033 ms 3276 KB Output is correct
52 Correct 1057 ms 3236 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Execution timed out 4048 ms 3304 KB Time limit exceeded
55 Halted 0 ms 0 KB -