Compilare: user.cpp: In function ‘int main()’: user.cpp:73:22: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(a[i] == 0 && !(i % 2) || i == 2) ^ user.cpp:63:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("joc18.in","r",stdin); ^ user.cpp: In function ‘int ianr()’: user.cpp:44:45: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buf , D , 1 , stdin) , poz = 0; ^ user.cpp:56:49: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buf , D , 1 , stdin) , poz = 0; ^