Compilare: user.cpp: In function ‘bool goodVal(int)’: user.cpp:113:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(val >= interval1 && val <= interval2) ^ user.cpp:121:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(nums[i] == val) ^ user.cpp: In function ‘void Read()’: user.cpp:34:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d %d", &p, &n, &k); ^ user.cpp:40:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &val); ^