0_0_30283706_4561.cpp:8:1: error: 'unordered_set' does not name a type
unordered_set<ll> st;
^
0_0_30283706_4561.cpp: In function 'void dfs(int)':
0_0_30283706_4561.cpp:16:17: error: 'st' was not declared in this scope
if(dep>120||st.size()>1e5)return;
^
0_0_30283706_4561.cpp:18:8: error: 'st' was not declared in this scope
if(st.count(h))return;
^
0_0_30283706_4561.cpp:19:5: error: 'st' was not declared in this scope
st.insert(h);
^
0_0_30283706_4561.cpp:26:55: error: 'printf' was not declared in this scope
for(int j=0; j<n; ++j)printf("%d ",a[i][j]);
^
0_0_30283706_4561.cpp:27:20: error: 'puts' was not declared in this scope
puts("");
^
0_0_30283706_4561.cpp:29:16: error: 'puts' was not declared in this scope
puts("");
^
0_0_30283706_4561.cpp:35:37: error: 'swap' was not declared in this scope
swap(a[zx][zy],a[xx][yy]);
^
0_0_30283706_4561.cpp: In function 'int main()':
0_0_30283706_4561.cpp:42:25: error: 'stdin' was not declared in this scope
freopen("i.txt","r",stdin);
^
0_0_30283706_4561.cpp:42:30: error: 'freopen' was not declared in this scope
freopen("i.txt","r",stdin);
^
0_0_30283706_4561.cpp:43:25: error: 'stdout' was not declared in this scope
freopen("o.txt","w",stdout);
^
0_0_30283706_4561.cpp:49:22: error: 'printf' was not declared in this scope
printf("%d\n",cnt);
^
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