Compilare: user.cpp: In function ‘int main()’: user.cpp:59:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i <= n; i++) ^ user.cpp:61:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(lvls[i] > max) ^ user.cpp:70:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 1; j <= n; j++) ^ user.cpp:72:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(lvls[j] == i) ^ user.cpp: In function ‘void get_levels(node*, uint*, uint*)’: user.cpp:109:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < vect[p].size; i++) ^ user.cpp: In function ‘int main()’: user.cpp:26:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%u%*c", &n); ^ user.cpp:34:49: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%u%*c%u%*c", &a, &b); ^