View Compilation Error

0_0_16899718_24517.cpp:1:1: error: 'include' does not name a type
 include <stdio.h>
 ^
0_0_16899718_24517.cpp: In function 'int main()':
0_0_16899718_24517.cpp:14:31: error: 'scanf' was not declared in this scope
     while(scanf("%d%d", &n, &k) != EOF) {
                               ^
0_0_16899718_24517.cpp:14:36: error: 'EOF' was not declared in this scope
     while(scanf("%d%d", &n, &k) != EOF) {
                                    ^
0_0_16899718_24517.cpp:36:24: error: 'printf' was not declared in this scope
             printf("\n");
                        ^
0_0_16899718_24517.cpp:37:36: error: 'printf' was not declared in this scope
         printf("Chain %d\n", kase++);
                                    ^