0_0_38397721_26568.cpp: In function 'int main()':
0_0_38397721_26568.cpp:4:23: error: 'scanf' was not declared in this scope
while (scanf("%d", &n) != 0) {
^
0_0_38397721_26568.cpp:20:24: error: 'printf' was not declared in this scope
printf("%.1f\n", size);
^
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