Compilare: main.cpp: In function 'int main()': main.cpp:61:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen( "secventa.in", "r", stdin ); ^ main.cpp:62:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen( "secventa.out", "w", stdout ); ^ main.cpp: In function 'char get_char()': main.cpp:16:34: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] p=0, fread(buff,1,4096,stdin); ^ main.cpp: In function 'int main()': main.cpp:81:25: warning: 'dr' may be used uninitialized in this function [-Wmaybe-uninitialized] printf( "%d %d %d", dr-m+1, dr, maxim ); ~~^~