View Compilation Error

0_0_36825707_20688.cpp: In function 'int main()':
0_0_36825707_20688.cpp:4:29: error: 'scanf' was not declared in this scope
    while(scanf("%d %d",&m,&n)!=EOF)
                             ^
0_0_36825707_20688.cpp:4:32: error: 'EOF' was not declared in this scope
    while(scanf("%d %d",&m,&n)!=EOF)
                                ^
0_0_36825707_20688.cpp:15:33: error: 'printf' was not declared in this scope
                   printf("%d ",i);
                                 ^
0_0_36825707_20688.cpp:19:29: error: 'printf' was not declared in this scope
                printf("no\n");
                             ^