Compilare: user.cpp: In function ‘int main()’: user.cpp:47:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<socks.size();i++){ ^ user.cpp:48:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<sizes.size();j++){ ^ user.cpp:27:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d",&k,&n); ^ user.cpp:31:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%s %d",culoare,&marime); ^