Compilare: user.cpp: In function ‘int main()’: user.cpp:33:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(i = 1; i <= n * n; i ++) ^~~ user.cpp:35:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ sort(v + 1, v + n * n + 1); ^~~~ user.cpp:31:13: warning: unused variable ‘k’ [-Wunused-variable] int i, k = 0; ^