Submission #1286364

#	Time	Username	Problem	Language	Result	Execution time	Memory
1286364		iamhereforfun	Secret (JOI14_secret)	C++20	Compilation error	0 ms	0 KiB

secret

// Starcraft 2 enjoyer //

#include <bits/stdc++.h>
#include "secret.h"

using namespace std;

#define LSOne(X) ((X) & -(X))

const int N = 1e3 + 5;
const int M = 1e6 + 5;
const int LG = 20;
const int C = 26;
const long long INF = 1e9;
const int B = 320;
const int P = 31;
const int MOD = 1e9 + 7;

int n, q, a[N], val[10][N], inp, mask[N];

void build(int l, int r, int lvl)
{
    if (l > r)
        return;
    if (l == r)
    {
        val[lvl][l] = a[l];
        return;
    }
    int m = (l + r) / 2;
    val[lvl][m] = a[m];
    for (int x = m - 1; x >= l; x--)
    {
        inp = Secret(val[lvl][x + 1], a[x]);
        // inp = val[lvl][x + 1] + a[x];
        val[lvl][x] = inp;
    }
    if (m + 1 <= r)
        val[lvl][m + 1] = a[m + 1];
    for (int x = m + 2; x <= r; x++)
    {
        inp = Secret(val[lvl][x - 1], a[x]);
        // inp = val[lvl][x - 1] + a[x];
        val[lvl][x] = inp;
    }
    for (int x = m + 1; x <= r; x++)
    {
        mask[x] ^= 1 << lvl;
    }
    build(l, m, lvl + 1);
    build(m + 1, r, lvl + 1);
}

void Init(int N, int A[])
{
    n = N;
    for (int x = 0; x < n; x++)
    {
        a[x] = A[x];
    }
    build(0, n - 1, 0);
}

int Query(int l, int r)
{
    if (l == r)
    {
        return a[l];
        return;
    }
    int i = __builtin_ctz(mask[l] ^ mask[r]);
    inp = Secret(val[i][l], val[i][r]);
    // inp = val[i][l] + val[i][r];
    return inp;
}

void solve()
{
    // cin >> n;
    // for (int x = 0; x < n; x++)
    // {
    //     cin >> a[x];
    //     mask[x] = 0;
    // }
    // build(0, n - 1, 0);
    // cin >> q;
    // for (int x = 0; x < q; x++)
    // {
    //     int l, r;
    //     cin >> l >> r;
    //     if (l == r)
    //     {
    //         cout << a[l] << "\n";
    //         continue;
    //     }
    //     int i = __builtin_ctz(mask[l] ^ mask[r]);
    //     secret(val[i][l], val[i][r]);
    //     // inp = val[i][l] + val[i][r];
    //     cout << inp << "\n";
    // }
}

signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int t = 1;
    // cin >> t;
    for (int x = 1; x <= t; x++)
    {
        solve();
    }
    return 0;
}

Compilation message (stderr)

secret.cpp: In function 'int Query(int, int)':
secret.cpp:69:9: error: return-statement with no value, in function returning 'int' [-fpermissive]
   69 |         return;
      |         ^~~~~~