#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() #include<ctime> #include<cstdlib> using namespace std; int main(){ srand(time(0)); cout<<"This is a C program."; return 0; }