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0_0_39226986_12022.cpp: In function 'int main()':
0_0_39226986_12022.cpp:3:11: error: 'scanf' was not declared in this scope
    3 |     while(scanf("%d",&N)!=EOF)
      |           ^~~~~
0_0_39226986_12022.cpp:3:27: error: 'EOF' was not declared in this scope
    3 |     while(scanf("%d",&N)!=EOF)
      |                           ^~~
0_0_39226986_12022.cpp:1:1: note: 'EOF' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?
  +++ |+#include <cstdio>
    1 | int main() {
0_0_39226986_12022.cpp:22:9: error: 'printf' was not declared in this scope
   22 |         printf("%d",a[k]);
      |         ^~~~~~
0_0_39226986_12022.cpp:22:9: note: 'printf' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?