#include <bits/stdc++.h>
#include "friend.h"
//#define DEBUG 1106
//#define int long long
#define ll long long
#define ld long double
#define pb push_back
#define p_q priority_queue
#define m_p make_pair
#define pii pair<int,int>
#define endl '\n'
#define INIT ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define FOR(i,a,b) for(int i = a; i <= b; i++)
#define forn(i,n) for (int i = 0; i < n; i++)
#define forn1(i,n)
#define all(x) x.begin(),x.end()
#define ft first
#define sd second
#define lowbit(x) (x&(-x))
#define chmax(x,y) x=max(x,y)
#define chmin(x,y) x=min(x,y)
using namespace std;
int findSample(int n, int confidence[], int host[], int protocol[]) {
int ret = 0;
forn1(i,n) ret += confidence[i];
return ret;
}
Compilation message
friend.cpp: In function 'int findSample(int, int*, int*, int*)':
friend.cpp:27:31: error: 'i' was not declared in this scope
27 | forn1(i,n) ret += confidence[i];
| ^
