View Compilation Error

0_0_33705378_1445.cpp: In function 'int main()':
0_0_33705378_1445.cpp:9:35: error: 'min' was not declared in this scope
         for(int j=i;j<=min(N-1,i+3);j++){
                                   ^
0_0_33705378_1445.cpp:34:18: error: 'scanf' was not declared in this scope
     scanf("%d",&t);
                  ^
0_0_33705378_1445.cpp:38:29: error: 'printf' was not declared in this scope
         printf("%d\n",ans[n]);
                             ^