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Submission #73175

# Submission time Handle Problem Language Result Execution time Memory
73175 2018-08-28T02:54:01 Z test Box Run (FXCUP3_box) C++14
100 / 100
 260 ms 36780 KB 
#include<bits/stdc++.h>
using namespace std;

const int MN = 500010;

int N;
int H[MN];

struct BIT {
    vector<int> tree;
    void init() {
        tree = vector<int>(4 * N, 0);
    }
    void upd(int idx, int val, int l, int r, int n) {
        if(idx < l || r < idx) return;
        if(l == r) {
            tree[n] = val;
            return;
        }
        int m = (l + r)>>1;
        upd(idx, val, l, m, 2*n);
        upd(idx, val, m + 1, r, 2*n + 1);
        tree[n] = max(tree[2*n], tree[2*n + 1]);
    }
    int kquer(int k, int l, int r, int n) {
        if(tree[n] < k) return -1;
        if(l == r) return l;
        int m = (l + r)>>1;
        if(tree[2*n + 1] < k) return kquer(k, l, m, 2*n);
        else return kquer(k, m + 1, r, 2*n + 1);
    }
} bit;

int mn[MN];

int main() {
    scanf("%d", &N);

    for(int i = 0; i < N; i++) {
        scanf("%d", &H[i]);
    }

    for(int i = 0; i <= N; i++) mn[i] = 1e9;
    bit.init();
    for(int i = 0; i < N; i++) {
        int a = bit.kquer(H[i], 0, N - 1, 1);
        bit.upd(i, H[i], 0, N - 1, 1);
        if(mn[i - a - 1] == 1e9) mn[i - a - 1] = i;
    }
    for(int i = N; i >= 0; i--) {
        mn[i - 1] = min(mn[i - 1], mn[i]);
    }
    for(int i = 1; i <= N; i++) {
        if(mn[i] == 1e9) printf("-1 ");
        else printf("%d ", mn[i] - i + 1);
    }
}

Compilation message

box.cpp: In function 'int main()':
box.cpp:37:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &N);
     ~~~~~^~~~~~~~~~
box.cpp:40:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &H[i]);
         ~~~~~^~~~~~~~~~~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 352 KB Output is correct
2 Correct 2 ms 360 KB Output is correct
3 Correct 2 ms 400 KB Output is correct
4 Correct 3 ms 404 KB Output is correct
5 Correct 2 ms 516 KB Output is correct
6 Correct 2 ms 520 KB Output is correct
7 Correct 3 ms 524 KB Output is correct
8 Correct 3 ms 528 KB Output is correct
9 Correct 3 ms 640 KB Output is correct
10 Correct 3 ms 644 KB Output is correct
11 Correct 2 ms 696 KB Output is correct

Subtask #2
83.0 / 83.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 352 KB Output is correct
2 Correct 2 ms 360 KB Output is correct
3 Correct 2 ms 400 KB Output is correct
4 Correct 3 ms 404 KB Output is correct
5 Correct 2 ms 516 KB Output is correct
6 Correct 2 ms 520 KB Output is correct
7 Correct 3 ms 524 KB Output is correct
8 Correct 3 ms 528 KB Output is correct
9 Correct 3 ms 640 KB Output is correct
10 Correct 3 ms 644 KB Output is correct
11 Correct 2 ms 696 KB Output is correct
12 Correct 3 ms 700 KB Output is correct
13 Correct 5 ms 844 KB Output is correct
14 Correct 23 ms 2428 KB Output is correct
15 Correct 38 ms 4048 KB Output is correct
16 Correct 61 ms 5660 KB Output is correct
17 Correct 139 ms 12764 KB Output is correct
18 Correct 206 ms 18868 KB Output is correct
19 Correct 209 ms 25896 KB Output is correct
20 Correct 242 ms 32612 KB Output is correct
21 Correct 260 ms 36780 KB Output is correct