oj.uz

Submission #606070

# Submission time Handle Problem Language Result Execution time Memory
606070 2022-07-26T04:59:35 Z kawaii Secret (JOI14_secret) C++17
0 / 100
 547 ms 8312 KB 
#include "secret.h"
#include<bits/stdc++.h>
using namespace std;
 
int n, a[1005], pre[1005][1005];

void dnc(int l, int r){
    if(l == r) return;
    int mid = l + r >> 1;
    dnc(l, mid); dnc(mid + 1, r);
    for(int i = mid - 1; i >= l; i--) pre[i][mid] = Secret(a[i], pre[i + 1][mid]);
    for(int i = mid + 1; i <= r; i++) pre[mid][i] = Secret(pre[mid][i - 1], a[i]);
}

void Init(int N, int A[]){
    for(int i = 1; i <= N; i++) a[i] = A[i - 1], pre[i][i] = a[i];
    n = N;
    dnc(1, n);
}

int solve(int l, int r, int lf, int rt){
    int mid = l + r >> 1;
    if(lf <= mid && mid <= rt){
        if(lf == mid) return pre[mid][rt];
        else if(rt == mid) return pre[lf][mid];
        return Secret(pre[lf][mid - 1], pre[mid][rt]);
    }
    if(rt < mid) return solve(l, mid, lf, rt);
    else return solve(mid, r, lf, rt);
}

int Query(int L, int R){
    L++; R++;
    return solve(1, n, L, R);
}

Compilation message

secret.cpp: In function 'void dnc(int, int)':
secret.cpp:9:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
    9 |     int mid = l + r >> 1;
      |               ~~^~~
secret.cpp: In function 'int solve(int, int, int, int)':
secret.cpp:22:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   22 |     int mid = l + r >> 1;
      |               ~~^~~

Subtask #1
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 144 ms 4352 KB Wrong Answer: Query(113, 206) - expected : 536899947, actual : 806695072.
2 Incorrect 131 ms 4376 KB Wrong Answer: Query(60, 375) - expected : 669221184, actual : 193042560.
3 Incorrect 134 ms 4404 KB Wrong Answer: Query(211, 401) - expected : 674373968, actual : 967888976.
4 Incorrect 536 ms 8192 KB Wrong Answer: Query(90, 497) - expected : 397934825, actual : 611025428.
5 Incorrect 521 ms 8156 KB Wrong Answer: Query(587, 915) - expected : 752404486, actual : 642440276.
6 Incorrect 547 ms 8312 KB Wrong Answer: Query(200, 208) - expected : 277813445, actual : 1785858.
7 Incorrect 518 ms 8200 KB Wrong Answer: Query(84, 976) - expected : 742463504, actual : 141133874.
8 Incorrect 509 ms 8192 KB Wrong Answer: Query(58, 987) - expected : 20022464, actual : 470009216.
9 Incorrect 499 ms 8220 KB Wrong Answer: Query(33, 967) - expected : 676869696, actual : 541073037.
10 Incorrect 540 ms 8148 KB Wrong Answer: Query(116, 961) - expected : 68487362, actual : 340812928.