Submission #339553

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
339553	2020-12-25T15:51:01 Z	fixikmila	Xoractive (IZhO19_xoractive)	C++14	Compilation error	0 ms	0 KB

Xoractive

#include <bits/stdc++.h>
using namespace std;
#define MOD 1000000007
typedef long long ll;
typedef pair<ll,ll>pll;
typedef long double ld;
ll bin_pow(ll a,ll b){
    if(b==0)return 1;
    if(b%2==0){
        ll t=bin_pow(a,b/2);
        return t*t%MOD;
    }
    else return a*bin_pow(a,b-1)%MOD;
}
int *guess(int n){
    int a[4];
    a[0]=ask(1);
    a[1]=ask(2);
    a[2]=ask(3);
    a[3]=ask(4);
    return a;
}

Compilation message

Xoractive.cpp: In function 'int* guess(int)':
Xoractive.cpp:17:10: error: 'ask' was not declared in this scope
   17 |     a[0]=ask(1);
      |          ^~~
Xoractive.cpp:21:12: warning: address of local variable 'a' returned [-Wreturn-local-addr]
   21 |     return a;
      |            ^
Xoractive.cpp:16:9: note: declared here
   16 |     int a[4];
      |         ^