Submission #957981

#	Time	Username	Problem	Language	Result	Execution time	Memory
957981		wksp	Secret (JOI14_secret)	C++14	Compilation error	0 ms	0 KiB

secret

#include<bits/stdc++.h>
#include "secret.h"
using namespace std;

// int Secret(int X, int Y){
//     int a;
//     cin >> a;
//     return a;
// }
const int n_max = 1024;
const int log = 12;
int tab[log][n_max];
// int tabr[log][n_max];
map<pair<int, int>, int> result_in_past; 

int check(int a, int b){
    if(result_in_past.find({a, b}) != result_in_past.end()){
        return result_in_past[{a, b}];
    }else{
        int x = Secret(a, b);
        result_in_past[{a, b}] = x;
        return x;
    }
}

void init_tree(int n, int lvl = 10, int l = 0, int r = n_max - 1){
    if(l > n){
        return;
    }
    if(lvl == 0){
        return;
    }
    int mid = (l+r)/2;
    init_tree(n, lvl - 1, l, mid);
    init_tree(n, lvl - 1, mid + 1, r);
    if(mid >= n){
        return;
    }

    tab[lvl][mid] = tab[0][mid];
    for(int i = mid - 1; i >= l; i--){
        tab[lvl][i] = check(tab[0][i], tab[lvl][i+1]);
    }
    tab[lvl][mid + 1] = tab[0][mid+1];
    for(int i = mid + 2; i <= min(n, r); i++){
        tab[lvl][i] = check(tab[lvl][i-1], tab[0][i]);
    }
}

int find_in_tree(int a, int b, int lvl = 10, int l = 0, int r = n_max - 1){
    int mid = (l+r)/2;
    if(r <= mid){
        return find_in_tree(a, b, lvl - 1, l, mid);
    }
    if(l > mid){
        return find_in_tree(a, b, lvl - 1, mid + 1, r);
    }
    return check(tab[lvl][l], tab[lvl][r]);
}

void Init(int N, int A[]){
    for(int i = 0; i < N; i++){
        tab[0][i] = A[i];
    }
    init_tree(N);
}

int Query(int L, int R){
    if(L == R){
        return tab[0][L];
    }
    return find_in_tree(L, R);
}

// int main(){
//     return 0;
// }

Compilation message (stderr)

secret.cpp:11:11: error: 'const int log' redeclared as different kind of entity
   11 | const int log = 12;
      |           ^~~
In file included from /usr/include/features.h:461,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/os_defines.h:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/c++config.h:518,
                 from /usr/include/c++/10/cassert:43,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from secret.cpp:1:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:104:1: note: previous declaration 'double log(double)'
  104 | __MATHCALL_VEC (log,, (_Mdouble_ __x));
      | ^~~~~~~~~~~~~~
secret.cpp:12:19: error: could not convert 'std::log' from '<unresolved overloaded function type>' to 'long unsigned int'
   12 | int tab[log][n_max];
      |                   ^
secret.cpp:12:5: error: size of array 'tab' has non-integral type '<unresolved overloaded function type>'
   12 | int tab[log][n_max];
      |     ^~~