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Submission #832163

# Submission time Handle Problem Language Result Execution time Memory
832163 2023-08-21T05:25:19 Z Magikarp4000 Fish 2 (JOI22_fish2) C++17
25 / 100
 4000 ms 5404 KB 
#include <bits/stdc++.h>
using namespace std;
#define OPTM ios_base::sync_with_stdio(0); cin.tie(0);
#define INF int(1e9+7)
#define ln '\n' 
#define ll long long
#define ull unsigned long long
#define ui unsigned int
#define us unsigned short
#define FOR(i,s,n) for (int i = s; i < n; i++)
#define FORR(i,n,s) for (int i = n; i > s; i--)
#define FORX(u, arr) for (auto u : arr)
#define PB push_back
#define F first
#define S second
#define PII pair<int, int>
#define PLL pair<ll, ll>
#define UM unordered_map
#define US unordered_set
#define PQ priority_queue
#define ALL(v) v.begin(), v.end()
const ll LLINF = 1e18+1;
#define int long long

const int MAXN = 1e5+5;
int n,q;
int a[MAXN];

int calc(int l, int r) {
    stack<pair<int,PII>> st;
    vector<PII> v;
    FOR(i,l,r+1) {
        int cur = a[i], cursta = i;
        while (!st.empty() && cur >= a[st.top().S.S]) {
            int val = st.top().F, sta = st.top().S.F, en = st.top().S.S;
            // cout << i << ": " << val << " " << sta << " " << en << ln;
            st.pop();
            cur += val;
            cursta = sta;
            if ((sta == l || a[sta-1] > cur-a[i]) && a[i] > cur-a[i]) v.PB({sta,i-1});
        }
        st.push({cur,{cursta,i}});
    }
    int cur = LLINF;
    while (!st.empty() && cur >= a[st.top().S.S]) {
        int val = st.top().F, sta = st.top().S.F, en = st.top().S.S;
        // cout << val << " " << sta << " " << en << ln;
        st.pop();
        cur += val;
        if ((sta == l || a[sta-1] > cur-LLINF)) v.PB({sta,r});
    }
    // FORX(u,v) cout << u.F << " " << u.S << ln;
    // return 0;
    stack<PII> st1;
    int j = v.size()-1;
    int cnt = 0;
    FORR(i,n-1,-1) {
        while (!st1.empty() && st1.top().F == i) st1.pop();
        while (j >= 0 && v[j].S == i) st1.push({v[j].F-1,j}), j--;
        if (!st1.empty() && v[st1.top().S] == make_pair(l,r)) cnt++;
    }
    return cnt;
}

signed main() {
    OPTM;
    cin >> n;
    FOR(i,0,n) cin >> a[i];
    a[n] = LLINF;
    cin >> q;
    FOR(_,0,q) {
        int t; cin >> t;
        if (t == 1) {
            int x,y; cin >> x >> y;
            a[x-1] = y;
        }
        else {
            int l,r; cin >> l >> r;
            l--; r--;
            cout << calc(l,r) << ln;
        }
    }
}

Compilation message

fish2.cpp: In function 'long long int calc(long long int, long long int)':
fish2.cpp:35:55: warning: unused variable 'en' [-Wunused-variable]
   35 |             int val = st.top().F, sta = st.top().S.F, en = st.top().S.S;
      |                                                       ^~
fish2.cpp:46:51: warning: unused variable 'en' [-Wunused-variable]
   46 |         int val = st.top().F, sta = st.top().S.F, en = st.top().S.S;
      |                                                   ^~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 328 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 2 ms 336 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 1 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 1 ms 468 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 3 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 11 ms 3780 KB Output is correct
3 Correct 8 ms 3536 KB Output is correct
4 Correct 12 ms 3792 KB Output is correct
5 Correct 8 ms 3608 KB Output is correct
6 Correct 11 ms 3224 KB Output is correct
7 Correct 7 ms 1960 KB Output is correct
8 Correct 10 ms 3172 KB Output is correct
9 Correct 6 ms 1880 KB Output is correct
10 Correct 9 ms 2772 KB Output is correct
11 Correct 7 ms 2512 KB Output is correct
12 Correct 7 ms 2516 KB Output is correct
13 Correct 7 ms 2528 KB Output is correct
14 Correct 9 ms 3904 KB Output is correct
15 Correct 10 ms 3796 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 328 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 2 ms 336 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 1 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 1 ms 468 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 3 ms 340 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 11 ms 3780 KB Output is correct
23 Correct 8 ms 3536 KB Output is correct
24 Correct 12 ms 3792 KB Output is correct
25 Correct 8 ms 3608 KB Output is correct
26 Correct 11 ms 3224 KB Output is correct
27 Correct 7 ms 1960 KB Output is correct
28 Correct 10 ms 3172 KB Output is correct
29 Correct 6 ms 1880 KB Output is correct
30 Correct 9 ms 2772 KB Output is correct
31 Correct 7 ms 2512 KB Output is correct
32 Correct 7 ms 2516 KB Output is correct
33 Correct 7 ms 2528 KB Output is correct
34 Correct 9 ms 3904 KB Output is correct
35 Correct 10 ms 3796 KB Output is correct
36 Correct 377 ms 5328 KB Output is correct
37 Correct 460 ms 4620 KB Output is correct
38 Correct 617 ms 3512 KB Output is correct
39 Correct 137 ms 4960 KB Output is correct
40 Correct 630 ms 3588 KB Output is correct
41 Correct 526 ms 3696 KB Output is correct
42 Correct 651 ms 3792 KB Output is correct
43 Correct 538 ms 2260 KB Output is correct
44 Correct 686 ms 2224 KB Output is correct
45 Correct 256 ms 3376 KB Output is correct
46 Correct 366 ms 3312 KB Output is correct
47 Correct 436 ms 2188 KB Output is correct
48 Correct 198 ms 2912 KB Output is correct
49 Correct 627 ms 3104 KB Output is correct
50 Correct 370 ms 4720 KB Output is correct
51 Correct 1607 ms 4076 KB Output is correct
52 Correct 1368 ms 4876 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 11 ms 3780 KB Output is correct
3 Correct 8 ms 3536 KB Output is correct
4 Correct 12 ms 3792 KB Output is correct
5 Correct 8 ms 3608 KB Output is correct
6 Correct 11 ms 3224 KB Output is correct
7 Correct 7 ms 1960 KB Output is correct
8 Correct 10 ms 3172 KB Output is correct
9 Correct 6 ms 1880 KB Output is correct
10 Correct 9 ms 2772 KB Output is correct
11 Correct 7 ms 2512 KB Output is correct
12 Correct 7 ms 2516 KB Output is correct
13 Correct 7 ms 2528 KB Output is correct
14 Correct 9 ms 3904 KB Output is correct
15 Correct 10 ms 3796 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Execution timed out 4043 ms 4988 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 11 ms 3780 KB Output is correct
3 Correct 8 ms 3536 KB Output is correct
4 Correct 12 ms 3792 KB Output is correct
5 Correct 8 ms 3608 KB Output is correct
6 Correct 11 ms 3224 KB Output is correct
7 Correct 7 ms 1960 KB Output is correct
8 Correct 10 ms 3172 KB Output is correct
9 Correct 6 ms 1880 KB Output is correct
10 Correct 9 ms 2772 KB Output is correct
11 Correct 7 ms 2512 KB Output is correct
12 Correct 7 ms 2516 KB Output is correct
13 Correct 7 ms 2528 KB Output is correct
14 Correct 9 ms 3904 KB Output is correct
15 Correct 10 ms 3796 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Execution timed out 4058 ms 5404 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 328 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 2 ms 336 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 1 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 1 ms 468 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 3 ms 340 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 11 ms 3780 KB Output is correct
23 Correct 8 ms 3536 KB Output is correct
24 Correct 12 ms 3792 KB Output is correct
25 Correct 8 ms 3608 KB Output is correct
26 Correct 11 ms 3224 KB Output is correct
27 Correct 7 ms 1960 KB Output is correct
28 Correct 10 ms 3172 KB Output is correct
29 Correct 6 ms 1880 KB Output is correct
30 Correct 9 ms 2772 KB Output is correct
31 Correct 7 ms 2512 KB Output is correct
32 Correct 7 ms 2516 KB Output is correct
33 Correct 7 ms 2528 KB Output is correct
34 Correct 9 ms 3904 KB Output is correct
35 Correct 10 ms 3796 KB Output is correct
36 Correct 377 ms 5328 KB Output is correct
37 Correct 460 ms 4620 KB Output is correct
38 Correct 617 ms 3512 KB Output is correct
39 Correct 137 ms 4960 KB Output is correct
40 Correct 630 ms 3588 KB Output is correct
41 Correct 526 ms 3696 KB Output is correct
42 Correct 651 ms 3792 KB Output is correct
43 Correct 538 ms 2260 KB Output is correct
44 Correct 686 ms 2224 KB Output is correct
45 Correct 256 ms 3376 KB Output is correct
46 Correct 366 ms 3312 KB Output is correct
47 Correct 436 ms 2188 KB Output is correct
48 Correct 198 ms 2912 KB Output is correct
49 Correct 627 ms 3104 KB Output is correct
50 Correct 370 ms 4720 KB Output is correct
51 Correct 1607 ms 4076 KB Output is correct
52 Correct 1368 ms 4876 KB Output is correct
53 Correct 0 ms 212 KB Output is correct
54 Execution timed out 4043 ms 4988 KB Time limit exceeded
55 Halted 0 ms 0 KB -