Compilare: user.cpp: In function ‘int main()’: user.cpp:35:1: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation] if(mx[j-1]+1>=mx[i])from[i]=j; ^~ user.cpp:36:21: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘if’ chmax(mx[i],mx[j-1]+1); ^~~~~ user.cpp:48:18: warning: unused variable ‘grp’ [-Wunused-variable] int poz = n, grp = 1; ^~~