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Submission #515790

# Submission time Handle Problem Language Result Execution time Memory
515790 2022-01-19T16:41:17 Z Jarif_Rahman Fire (JOI20_ho_t5) C++17
1 / 100
 1000 ms 28532 KB 
#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;

#define debug(s) for(auto x: s) cerr << x << " "; cerr << #s << "\n";

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int n, q; cin >> n >> q;
    vector<ll> s(n);
    for(ll &x: s) cin >> x;

    vector<ll> ss = s;

    vector<int> prev(n, -1);
    stack<int> st;
    for(int i = n-1; i >= 0; i--){
        while(!st.empty() && s[i] > s[st.top()]) prev[st.top()] = i, st.pop();
        st.push(i);
    }
    while(!st.empty()) st.pop();

    vector<vector<int>> end(n+1);
    vector<vector<pair<int, int>>> chng(n+1);
    for(int i = 0; i < n; i++){
        while(!st.empty() && s[st.top()] <= s[i]){
            int x = st.top();
            st.pop();
            end[i-x-1].pb(x);
            if(prev[x] == -1) continue;
            if(s[prev[x]] <= s[i]) continue;
            chng[i-prev[x]-1].pb({prev[x], i});
        }
        st.push(i);
    }
    while(!st.empty()) end[n-st.top()-1].pb(st.top()), st.pop();

    vector<vector<array<int, 3>>> queries(n);
    for(int i = 0; i < q; i++){
        int t, l, r; cin >> t >> l >> r; t--, l--, r--;
        queries[t].pb({l, r, i});
    }

    vector<ll> sth(n, 0);
    vector<ll> ans(q, 0);

    for(int i = 0; i+1 < n; i++) sth[i] = max(0LL, s[i]-s[i+1]);

    for(int t = 1; t <= n; t++){
        for(int in: end[t-1]){
            if(in != n-1) for(int i = in+1; i <= in+t-1; i++) ss[i]+=sth[in];
            sth[in] = 0;
        }
        for(auto [in, nxt]: chng[t-1]){
            ll x = sth[in]-(s[in]-s[nxt]);
            for(int i = in+1; i < nxt; i++) ss[i]+=x;
            sth[in] = (s[in]-s[nxt]);
        }
        for(auto [l, r, in]: queries[t-1]){
            for(int i = l; i <= r; i++) ans[in]+=ss[i];
            for(int i = 0; i < n-1; i++){
                for(int j = i+1; j <= i+t; j++) if(j >= l && j <= r) ans[in]+=sth[i];
            }
        }
    }

    for(ll x: ans) cout << x << "\n";
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 308 KB Output is correct
2 Correct 6 ms 348 KB Output is correct
3 Correct 7 ms 332 KB Output is correct
4 Correct 6 ms 332 KB Output is correct
5 Correct 6 ms 316 KB Output is correct
6 Correct 7 ms 316 KB Output is correct
7 Correct 7 ms 332 KB Output is correct
8 Correct 5 ms 340 KB Output is correct
9 Correct 5 ms 352 KB Output is correct
10 Correct 9 ms 352 KB Output is correct
11 Correct 7 ms 336 KB Output is correct
12 Correct 5 ms 336 KB Output is correct
13 Correct 8 ms 356 KB Output is correct
14 Correct 9 ms 356 KB Output is correct
15 Correct 9 ms 360 KB Output is correct
16 Correct 9 ms 344 KB Output is correct
17 Correct 10 ms 352 KB Output is correct
18 Correct 8 ms 348 KB Output is correct
19 Correct 11 ms 336 KB Output is correct
20 Correct 8 ms 332 KB Output is correct
21 Correct 9 ms 356 KB Output is correct
22 Correct 11 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 2 ms 344 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 344 KB Output is correct

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 308 KB Output is correct
2 Execution timed out 1091 ms 26580 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 308 KB Output is correct
2 Execution timed out 1036 ms 28532 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 6.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1100 ms 27624 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 308 KB Output is correct
2 Correct 6 ms 348 KB Output is correct
3 Correct 7 ms 332 KB Output is correct
4 Correct 6 ms 332 KB Output is correct
5 Correct 6 ms 316 KB Output is correct
6 Correct 7 ms 316 KB Output is correct
7 Correct 7 ms 332 KB Output is correct
8 Correct 5 ms 340 KB Output is correct
9 Correct 5 ms 352 KB Output is correct
10 Correct 9 ms 352 KB Output is correct
11 Correct 7 ms 336 KB Output is correct
12 Correct 5 ms 336 KB Output is correct
13 Correct 8 ms 356 KB Output is correct
14 Correct 9 ms 356 KB Output is correct
15 Correct 9 ms 360 KB Output is correct
16 Correct 9 ms 344 KB Output is correct
17 Correct 10 ms 352 KB Output is correct
18 Correct 8 ms 348 KB Output is correct
19 Correct 11 ms 336 KB Output is correct
20 Correct 8 ms 332 KB Output is correct
21 Correct 9 ms 356 KB Output is correct
22 Correct 11 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 2 ms 344 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Execution timed out 1091 ms 26580 KB Time limit exceeded
34 Halted 0 ms 0 KB -