Compilare: main.cpp: In function 'int main()': main.cpp:26:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < flori.size(); i++ ) ~~^~~~~~~~~~~~~~ main.cpp:27:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int j = i + 1; j < flori.size(); j++ ) { ~~^~~~~~~~~~~~~~ main.cpp:15:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &n ); ^ main.cpp:18:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &nr ); ^ main.cpp:23:42: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &x, &y ); ^