Compilare: user.cpp: In function ‘int main()’: user.cpp:119:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(type==3) ^ user.cpp:124:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(type==4) ^ user.cpp: In function ‘void read(int&)’: user.cpp:25:38: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer,1,DIM,stdin); ^ user.cpp:33:38: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer,1,DIM,stdin); ^ user.cpp: In function ‘int main()’: user.cpp:95:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kthvalue.in","r",stdin); ^ user.cpp:96:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kthvalue.out","w",stdout); ^