#include "supertrees.h" #include <bits/stdc++.h> using namespace std; int construct(vector<vector<int>> p) { int n = p.size(); vector<vector<int>> ans(n, vector<int>(n, 0)); for(int i = 0; i < n; i ++) for(int j = 0; j < n; j ++) if(p[i][j] == 3) return 0; vector<int> rt(n, 0); for(int i = 0; i < n; i ++){ int la = 0; for(; p[i][la] != 1; la ++); if(la != i){ if(p[la] != p[i]) return 0; ans[la][i] = 1; ans[i][la] = 1; }else rt[i] = 1; } for(int i = 0; i < n; i ++) if(rt[i]){ int cc = 0; for(; p[i][cc] == 0; cc ++); for(int j = 0; j < n; j ++)if((p[cc][j] == 0) ^ (p[i][j] == 0))return 0; if(cc == i){ int la = i; for(int j = i + 1; j < n; j ++) if(rt[j] && p[i][j]){ ans[la][j] = 1; ans[j][la] = 1; la = j; } if(la == i); else if(ans[la][i]) return 0; else ans[la][i] = 1; ans[i][la] = 1; } } build(ans); return 1; }

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:31:4: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
   31 |    else ans[la][i] = 1; ans[i][la] = 1;
      |    ^~~~
supertrees.cpp:31:25: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'else'
   31 |    else ans[la][i] = 1; ans[i][la] = 1;
      |                         ^~~