Compilare: main.cpp: In function 'int main()': main.cpp:104:13: warning: unused variable 'p1' [-Wunused-variable] int p1 = V[Left], p2 = V[Right]; ^~ main.cpp:104:27: warning: unused variable 'p2' [-Wunused-variable] int p1 = V[Left], p2 = V[Right]; ^~ main.cpp: In function 'void Read()': main.cpp:67:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("kprime.in", "r", stdin); ^ main.cpp:68:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("kprime.out", "w", stdout); ^ main.cpp: In function 'char Char()': main.cpp:27:37: 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, BSIZE, stdin); ^