Submission #1091438

#	Time	Username	Problem	Language	Result	Execution time	Memory
1091438		Almonther	Coins (IOI17_coins)	C++17	Compilation error	0 ms	0 KiB

coins

#include <bits/stdc++.h>

#define suiii ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define ll long long
#define co cout<<
//#pragma GCC optimize("O3,Ofast,unroll-loops")
//#pragma GCC target("avx2,sse3,sse4,avx")
using namespace std;
//stuff
int[] coin_flips(int []b, int c){
    ll num=0;
    for(int i=0;i<63;i++){
        if(b[i]) num^=i;
    }
    for(int i=0;i<63;i++){
        if(num^i==c){
            b[i]^=1;
            return b;
        }
    }
}
int find_coin(int[] b){
    int ans=0;
    for(int i=0;i<63;i++){
        if(b[i]) ans^=i;
    }
    return ans;
}

Compilation message (stderr)

coins.cpp:10:4: error: structured binding declaration cannot have type 'int'
   10 | int[] coin_flips(int []b, int c){
      |    ^~
coins.cpp:10:4: note: type must be cv-qualified 'auto' or reference to cv-qualified 'auto'
coins.cpp:10:4: error: empty structured binding declaration
coins.cpp:10:7: error: expected initializer before 'coin_flips'
   10 | int[] coin_flips(int []b, int c){
      |       ^~~~~~~~~~
coins.cpp:22:21: error: expected ',' or '...' before 'b'
   22 | int find_coin(int[] b){
      |                     ^
coins.cpp: In function 'int find_coin(int*)':
coins.cpp:25:12: error: 'b' was not declared in this scope
   25 |         if(b[i]) ans^=i;
      |            ^