oj.uz

Submission #1030481

# Submission time Handle Problem Language Result Execution time Memory
1030481 2024-07-22T05:39:52 Z KienTran Secret (JOI14_secret) C++14
0 / 100
 301 ms 4436 KB 
#include <bits/stdc++.h>
#include "secret.h"

using namespace std;

const int O = 2e3 + 5;
//const int N = (1 << 20) + 5;
const int mod = 1e9 + 7; //998244353;
const int inf = 1e18;
int pr[] = {167772161, 469762049, 754974721, 1045430273, 1051721729, 1053818881};
const double eps = 1e-10;

int n, a[O], mask[O], f[21][O];

/*int Secret(int x, int y){
    return x + y;
}*/

void DnC(int l, int r, int level){
    if (level > 8) return;
    int mid = (l + r) / 2;

    DnC(l, mid, level + 1);
    DnC(mid + 1, r, level + 1);

    f[level][mid] = a[mid];
    for (int i = mid - 1; i >= l; -- i) f[level][i] = Secret(f[level][i + 1], a[i]);

    f[level][mid + 1] = a[mid + 1];
    for (int i = mid + 2; i <= r; ++ i) f[level][i] = Secret(f[level][i - 1], a[i]);

    for (int i = mid + 1; i <= r; ++ i) mask[i] |= (1 << level);

}

void Init(int N, int A[]){
    for (int i = 0; i < N; ++ i){
        a[i] = A[i];
        mask[i] = 0;
    }
    DnC(0, N - 1, 0);
}

int Query(int L, int R){
    if (L == R) return a[L];
    if (L + 1 == R){
        return Secret(a[L], a[R]);
    }
    int x, cur = mask[L] ^ mask[R];
    for (int i = 0; i < 10; ++ i){
        if (cur >> i & 1){
            x = i;
            break;
        }
    }
    return Secret(f[x][L], f[x][R]);
}

/*main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    cin >> n;
    for (int i = 0; i < n; ++ i){
        cin >> a[i];
    }

    Init(n, a);

    int q; cin >> q;
    while (q --){
        int l, r; cin >> l >> r;
        cout << Query(l, r) << endl;
    }
}*/
/**
**/

Compilation message

secret.cpp:9:17: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
    9 | const int inf = 1e18;
      |                 ^~~~
secret.cpp: In function 'int Query(int, int)':
secret.cpp:56:18: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
   56 |     return Secret(f[x][L], f[x][R]);
      |            ~~~~~~^~~~~~~~~~~~~~~~~~

Subtask #1
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 79 ms 2384 KB Wrong Answer: Query(222, 254) - expected : 34031541, actual : 268854015.
2 Incorrect 71 ms 2384 KB Wrong Answer: Query(60, 375) - expected : 669221184, actual : 311474560.
3 Incorrect 79 ms 2520 KB Wrong Answer: Query(211, 401) - expected : 674373968, actual : 353554500.
4 Incorrect 286 ms 4332 KB Wrong Answer: Query(90, 497) - expected : 397934825, actual : 343081568.
5 Incorrect 291 ms 4436 KB Wrong Answer: Query(587, 915) - expected : 752404486, actual : 957013316.
6 Incorrect 266 ms 4364 KB Wrong Answer: Query(200, 208) - expected : 277813445, actual : 154975445.
7 Incorrect 301 ms 4436 KB Wrong Answer: Query(84, 976) - expected : 742463504, actual : 675449873.
8 Incorrect 273 ms 4436 KB Wrong Answer: Query(58, 987) - expected : 20022464, actual : 273091792.
9 Incorrect 284 ms 4436 KB Wrong Answer: Query(33, 967) - expected : 676869696, actual : 827853577.
10 Incorrect 278 ms 4432 KB Wrong Answer: Query(116, 961) - expected : 68487362, actual : 337854787.