Compilare: user.cpp: In function ‘void citeste(int&)’: user.cpp:45:39: 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, DIM, stdin); ^ user.cpp:55:39: 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, DIM, stdin); ^ user.cpp: In function ‘int main()’: user.cpp:62:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("k1.in", "r", stdin); ^ user.cpp:63:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("k1.out", "w", stdout); ^ user.cpp: In function ‘void caut()’: user.cpp:31:9: warning: ‘a’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(a+b >= NMAX) while(1){}; ^ user.cpp:31:9: warning: ‘b’ may be used uninitialized in this function [-Wmaybe-uninitialized]