0_0_33442688_6905.cpp: In function 'int main()':
0_0_33442688_6905.cpp:26:24: error: 'scanf' was not declared in this scope
while(scanf("%d",&n)!=EOF)
^
0_0_33442688_6905.cpp:26:27: error: 'EOF' was not declared in this scope
while(scanf("%d",&n)!=EOF)
^
0_0_33442688_6905.cpp:46:26: error: 'printf' was not declared in this scope
printf("%d\n",sum);
^
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