Predict the Output

Find the output of the cpp program

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#include "iostream"
using namespace std;
int main()
{
    int i;
    i = 1 + ( 1, 4, 5, 6, 3);
    cout<<i;
}

83. Predict the output or error(s) of the following c code

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#include "stdio.h"
aaa() {
	printf("hi");
}
 
bbb(){
	printf("hello");
}
 
ccc(){
	printf("bye");
}
 
main()
{
	int (*ptr[3])();
	ptr[0]=aaa;
	ptr[1]=bbb;
	ptr[2]=ccc;
	ptr[2]();
}