View Compilation Error

0_0_29714376_25270.cpp: In function 'int main()':
0_0_29714376_25270.cpp:2:16: error: 'cin' was not declared in this scope
     int t,ca=1;cin>>t;
                ^
0_0_29714376_25270.cpp:4:32: error: 'scanf' was not declared in this scope
         double p;scanf("%lf",&p);
                                ^
0_0_29714376_25270.cpp:7:30: error: 'memset' was not declared in this scope
         memset(dp,0,sizeof dp);
                              ^
0_0_29714376_25270.cpp:10:51: error: 'min' was not declared in this scope
             dp[i]=1+p*(1-1.0*i/200)*dp[min(i+4,200)];
                                                   ^
0_0_29714376_25270.cpp:13:46: error: 'printf' was not declared in this scope
         printf("Case %d: %.10lf\n",ca++,dp[4]);
                                              ^