oj.uz

Submission #942565

# Submission time Handle Problem Language Result Execution time Memory
942565 2024-03-10T21:31:16 Z vjudge1 Index (COCI21_index) C++17
60 / 110
 2500 ms 66736 KB 
#include <bits/stdc++.h>
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#pragma GCC target("popcnt")
#pragma GCC target("avx,avx2,sse3,ssse3,sse4.1,sse4.2,tune=native")
#pragma GCC optimize(3)
#pragma GCC optimize("O3")
#pragma GCC optimize("inline")
#pragma GCC optimize("-fgcse")
#pragma GCC optimize("-fgcse-lm")
#pragma GCC optimize("-fipa-sra")
#pragma GCC optimize("-ftree-pre")
#pragma GCC optimize("-ftree-vrp")
#pragma GCC optimize("-fpeephole2")
#pragma GCC optimize("-fsched-spec")
#pragma GCC optimize("-falign-jumps")
#pragma GCC optimize("-falign-loops")
#pragma GCC optimize("-falign-labels")
#pragma GCC optimize("-fdevirtualize")
#pragma GCC optimize("-fcaller-saves")
#pragma GCC optimize("-fcrossjumping")
#pragma GCC optimize("-fthread-jumps")
#pragma GCC optimize("-freorder-blocks")
#pragma GCC optimize("-fschedule-insns")
#pragma GCC optimize("inline-functions")
#pragma GCC optimize("-ftree-tail-merge")
#pragma GCC optimize("-fschedule-insns2")
#pragma GCC optimize("-fstrict-aliasing")
#pragma GCC optimize("-falign-functions")
#pragma GCC optimize("-fcse-follow-jumps")
#pragma GCC optimize("-fsched-interblock")
#pragma GCC optimize("-fpartial-inlining")
#pragma GCC optimize("no-stack-protector")
#pragma GCC optimize("-freorder-functions")
#pragma GCC optimize("-findirect-inlining")
#pragma GCC optimize("-fhoist-adjacent-loads")
#pragma GCC optimize("-frerun-cse-after-loop")
#pragma GCC optimize("inline-small-functions")
#pragma GCC optimize("-finline-small-functions")
#pragma GCC optimize("-ftree-switch-conversion")
#pragma GCC optimize("-foptimize-sibling-calls")
#pragma GCC optimize("-fexpensive-optimizations")
#pragma GCC optimize("inline-functions-called-once")
#pragma GCC optimize("-fdelete-null-pointer-checks")

using namespace std;

using ld = long double;
using ll = long long;

#define int ll

#define sz(x) (int)x.size()

const int N = 2e5+5;
int n, q;
int p[N];

vector<int> T[4*N];

void init(int i, int tl, int tr){
    if(tl == tr){
        T[i].push_back(p[tl]);
        return;
    }

    int m = (tl + tr) / 2;

    init(2*i+1, tl, m);
    init(2*i+2, m+1, tr);

    merge(T[2*i+1].begin(), T[2*i+1].end(), T[2*i+2].begin(), T[2*i+2].end(), back_inserter(T[i]));

}

int query(int l, int r, int k, int i, int tl, int tr){
    if(r < tl or l > tr){
        return 0;
    }
    if(l <= tl && tr <= r){
        return lower_bound(T[i].begin(), T[i].end(), k) - T[i].begin();
    }
    int m = (tl + tr) / 2;
    return query(l, r, k, 2*i+1, tl, m) + query(l, r, k, 2*i+2, m+1, tr);
}

int query(int l, int r, int k){
    return query(l, r, k, 0, 0, n-1);
}

signed main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin >> n >> q;
    for(int i=0; i<n; ++i){
        cin >> p[i];
    }

    init(0, 0, n-1);

    while(q--){
        int l, r;
        cin >> l >> r;
        l--, r--;

        int low = 1, high = r - l + 1;
        int res = 1;
        while(low <= high){
            int mid = (low + high) / 2;

            int tmp = r - l + 1 - query(l, r, mid);

            if(tmp >= mid){
                res = mid;
                low = mid+1;
            } else {
                high = mid-1;
            }

        }

        cout << res << endl;


    }

}

Compilation message

index.cpp:3: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    3 | #pragma GCC optimization ("O3")
      | 
index.cpp:4: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    4 | #pragma GCC optimization ("unroll-loops")
      |

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 19292 KB Output is correct
2 Correct 10 ms 19292 KB Output is correct
3 Correct 9 ms 19312 KB Output is correct
4 Correct 9 ms 19288 KB Output is correct
5 Correct 10 ms 19292 KB Output is correct
6 Correct 8 ms 19292 KB Output is correct
7 Correct 9 ms 19292 KB Output is correct
8 Correct 10 ms 19288 KB Output is correct
9 Correct 9 ms 19448 KB Output is correct
10 Correct 9 ms 19288 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 19292 KB Output is correct
2 Correct 10 ms 19292 KB Output is correct
3 Correct 9 ms 19312 KB Output is correct
4 Correct 9 ms 19288 KB Output is correct
5 Correct 10 ms 19292 KB Output is correct
6 Correct 8 ms 19292 KB Output is correct
7 Correct 9 ms 19292 KB Output is correct
8 Correct 10 ms 19288 KB Output is correct
9 Correct 9 ms 19448 KB Output is correct
10 Correct 9 ms 19288 KB Output is correct
11 Correct 691 ms 30740 KB Output is correct
12 Correct 656 ms 30736 KB Output is correct
13 Correct 663 ms 30664 KB Output is correct
14 Correct 684 ms 30932 KB Output is correct
15 Correct 698 ms 30552 KB Output is correct
16 Correct 666 ms 30864 KB Output is correct
17 Correct 675 ms 30708 KB Output is correct
18 Correct 659 ms 30892 KB Output is correct
19 Correct 672 ms 30580 KB Output is correct
20 Correct 652 ms 30692 KB Output is correct

Subtask #3
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 19292 KB Output is correct
2 Correct 10 ms 19292 KB Output is correct
3 Correct 9 ms 19312 KB Output is correct
4 Correct 9 ms 19288 KB Output is correct
5 Correct 10 ms 19292 KB Output is correct
6 Correct 8 ms 19292 KB Output is correct
7 Correct 9 ms 19292 KB Output is correct
8 Correct 10 ms 19288 KB Output is correct
9 Correct 9 ms 19448 KB Output is correct
10 Correct 9 ms 19288 KB Output is correct
11 Correct 691 ms 30740 KB Output is correct
12 Correct 656 ms 30736 KB Output is correct
13 Correct 663 ms 30664 KB Output is correct
14 Correct 684 ms 30932 KB Output is correct
15 Correct 698 ms 30552 KB Output is correct
16 Correct 666 ms 30864 KB Output is correct
17 Correct 675 ms 30708 KB Output is correct
18 Correct 659 ms 30892 KB Output is correct
19 Correct 672 ms 30580 KB Output is correct
20 Correct 652 ms 30692 KB Output is correct
21 Execution timed out 2537 ms 66736 KB Time limit exceeded
22 Halted 0 ms 0 KB -