oj.uz

Submission #127289

# Submission time Handle Problem Language Result Execution time Memory
127289 2019-07-09T07:53:15 Z choikiwon Sushi (JOI16_sushi) C++17
5 / 100
 463 ms 1016 KB 
#include<bits/stdc++.h>
using namespace std;

const int MN = 100010;
const int SQ = 500;
const int BS = (MN + SQ - 1) / SQ;

int N, Q;
int A[MN];
multiset<int> V[BS], X[BS];

void prop(int bid) {
    int l = bid * SQ;
    int r = min(N - 1, l + SQ - 1);

    for(int i = l; i <= r; i++) {
        auto it = V[bid].begin();
        if(it == V[bid].end() || A[i] < *it) continue;
        int x = *it;
        V[bid].insert(A[i]);
        A[i] = x;
        V[bid].erase(V[bid].find(x));
    }

    V[bid].clear();
    X[bid].clear();
    for(int i = l; i <= r; i++) X[bid].insert(A[i]);
}

int proc1(int s, int e, int p) {
    int bid = s / SQ;
    prop(bid);

    X[bid].insert(p);
    for(int i = s; i <= e; i++) if(A[i] > p) swap(A[i], p);
    X[bid].erase(X[bid].find(p));
    return p;
}
int proc2(int bid, int v) {
    V[bid].insert(v);
    X[bid].insert(v);
    int mx = *X[bid].rbegin();
    X[bid].erase(X[bid].find(mx));
    return mx;
}

int solve(int s, int e, int p) {
    if(s / SQ == e / SQ) {
        return proc1(s, e, p);
    }
    else {
        p = proc1(s, (s / SQ + 1) * SQ - 1, p);
        for(int i = s / SQ + 1; i < e / SQ; i++) p = proc2(i, p);
        p = proc1(e / SQ * SQ, e, p);
        return p;
    }
}

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

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

    for(int i = 0; i < N; i++) {
        X[i / SQ].insert(A[i]);
    }
    for(int i = 0; i < Q; i++) {
        int s, e, p; scanf("%d %d %d", &s, &e, &p);
        s--; e--;

        if(s <= e) {
            printf("%d\n", solve(s, e, p));
        }
        else {
            p = solve(s, N - 1, p);
            printf("%d\n", solve(0, e, p));
        }
    }
}

Compilation message

sushi.cpp: In function 'int main()':
sushi.cpp:60:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &N, &Q);
     ~~~~~^~~~~~~~~~~~~~~~~
sushi.cpp:63:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &A[i]);
         ~~~~~^~~~~~~~~~~~~
sushi.cpp:70:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         int s, e, p; scanf("%d %d %d", &s, &e, &p);
                      ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 329 ms 664 KB Output is correct
2 Correct 329 ms 560 KB Output is correct
3 Correct 328 ms 684 KB Output is correct
4 Correct 328 ms 672 KB Output is correct
5 Correct 328 ms 540 KB Output is correct
6 Correct 336 ms 636 KB Output is correct
7 Correct 243 ms 512 KB Output is correct
8 Correct 246 ms 516 KB Output is correct
9 Correct 328 ms 636 KB Output is correct
10 Correct 327 ms 504 KB Output is correct
11 Correct 288 ms 684 KB Output is correct
12 Correct 291 ms 632 KB Output is correct
13 Correct 293 ms 584 KB Output is correct
14 Correct 463 ms 680 KB Output is correct
15 Correct 457 ms 504 KB Output is correct
16 Correct 135 ms 632 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Execution timed out 21 ms 1016 KB Time limit exceeded (wall clock)
2 Halted 0 ms 0 KB -

Subtask #3
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 329 ms 664 KB Output is correct
2 Correct 329 ms 560 KB Output is correct
3 Correct 328 ms 684 KB Output is correct
4 Correct 328 ms 672 KB Output is correct
5 Correct 328 ms 540 KB Output is correct
6 Correct 336 ms 636 KB Output is correct
7 Correct 243 ms 512 KB Output is correct
8 Correct 246 ms 516 KB Output is correct
9 Correct 328 ms 636 KB Output is correct
10 Correct 327 ms 504 KB Output is correct
11 Correct 288 ms 684 KB Output is correct
12 Correct 291 ms 632 KB Output is correct
13 Correct 293 ms 584 KB Output is correct
14 Correct 463 ms 680 KB Output is correct
15 Correct 457 ms 504 KB Output is correct
16 Correct 135 ms 632 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Execution timed out 21 ms 1016 KB Time limit exceeded (wall clock)
24 Halted 0 ms 0 KB -