Compilare: main.cpp: In member function 'char InParser::read_ch()': main.cpp:14:29: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, 4096, fin); ^ main.cpp: In function 'int main()': main.cpp:104:23: warning: iteration 1000004 invokes undefined behavior [-Waggressive-loop-optimizations] while( f_min[i]-- != 0 ) ~~~~~~~^ main.cpp:103:23: note: within this loop for( int i = 1; i <= DIM; i++ ){ ~~^~~~~~ main.cpp:100:23: warning: iteration 1000004 invokes undefined behavior [-Waggressive-loop-optimizations] ans += f_min[i]; ~~~~~~~^ main.cpp:99:23: note: within this loop for( int i = 1; i <= DIM; i++ ) ~~^~~~~~