Compilare: main.cpp: In function 'int main()': main.cpp:73:41: warning: unused variable 'p' [-Wunused-variable] int arb[15001] = {}, m, i, x, y, t, p; ^ main.cpp: In function 'char next()': main.cpp:17:35: 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, fin); ^