0_0_18951648_5838.cpp: In function 'int main()':
0_0_18951648_5838.cpp:4:23: error: 'scanf' was not declared in this scope
while (scanf("%d", &n) != EOF)
^
0_0_18951648_5838.cpp:4:28: error: 'EOF' was not declared in this scope
while (scanf("%d", &n) != EOF)
^
0_0_18951648_5838.cpp:8:19: error: 'printf' was not declared in this scope
printf("%d\n", a);
^
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