#include <bits/stdc++.h>
using namespace std;
#define f first
#define s second
#define pb push_back
#define ar array
#define all(x) x.begin(), x.end()
#define siz(x) (int)x.size()
#define FOR(x, y, z) for(int x = (y); x < (z); x++)
#define ROF(x, z, y) for(int x = (y-1); x >= (z); x--)
#define F0R(x, z) FOR(x, 0, z)
#define R0F(x, z) ROF(x, 0, z)
#define trav(x, y) for(auto&x:y)
using ll = long long;
using vi = vector<int>;
using vl = vector<long long>;
using pii = pair<int, int>;
using vpii = vector<pair<int, int>>;
template<class T> inline bool ckmin(T&a, T b) {return b < a ? a = b, 1 : 0;}
template<class T> inline bool ckmax(T&a, T b) {return b > a ? a = b, 1 : 0;}
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const char nl = '\n';
const int mxN = 2e5 + 10;
const int MOD = 1e9 + 7;
const long long infLL = 1e18;
bool a[7], b[11], c[7];
void solve(){
F0R(i, 7) a[i] = 0;
F0R(i, 11) b[i] = 0;
F0R(i, 7) c[i] = 0;
FOR(i, 1, 7){
FOR(j, 1, 11){
FOR(k, 1, 7){
if(a[i] == 1 || b[j] == 1 || c[k] == 1) continue;
int x = theory(i, j, k);
if(x == 0) return;
else if(x==1) a[i] = 1;
else if(x==2) b[j] = 1;
else c[k] = 1;
}
}
}
}
// int32_t main(){
// ios_base::sync_with_stdio(0); cin.tie(0);
// return 0;
// }
Compilation message
cluedo.cpp: In function 'void solve()':
cluedo.cpp:42:25: error: 'theory' was not declared in this scope
42 | int x = theory(i, j, k);
| ^~~~~~