0_0_38589706_22807.cpp:19:11: error: '::main' must return 'int'
void main() {
^
0_0_38589706_22807.cpp: In function 'int main()':
0_0_38589706_22807.cpp:30:2: error: return-statement with no value, in function returning 'int' [-fpermissive]
return;
^~~~~~
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