What is the output of this program? #include using namespace std; int main() {in
ID: 3794081 • Letter: W
Question
What is the output of this program? #include using namespace std; int main() {int a; int &ref; = a; a = 15; cout NestedLessLess a NestedLessLess " " NestedLessLess ref NestedLessLess endl NestedLessLess endl; ref = 30; cout NestedLessLess a NestedLessLess " " NestedLessLess ref NestedLessLess endl NestedLessLess endl; ref = 45; cout NestedLessLess " " NestedLessLess a NestedLessLess " " NestedLessLess ref NestedLessLess endl NestedLessLess endl; int b = 100; ref = b - 5; cout NestedLessLess a NestedLessLess " " NestedLessLess ref NestedLessLess endl NestedLessLess endl; ref++; cout NestedLessLess a NestedLessLess " " NestedLessLess ref NestedLessLess endl NestedLessLess endl; ref = ref + a + b; cout NestedLessLess endl; cout NestedLessLess " a == " NestedLessLess a NestedLessLess endl; cout NestedLessLess " b == " NestedLessLess b NestedLessLess endl; cout NestedLessLess " ref == " NestedLessLess ref NestedLessLess endl NestedLessLess endl; return 0;}Explanation / Answer
Output of above program is: 15 15
30 30
45 45
95 95
96 96
a==292
b==100
ref==292
explaination:
int &ref=a; ref is just another name for variable a;
1) a=15
therefore first output is 15 15
2) ref=30
as a becomes 30 and output is 30 30
3) ref =45
output is 45 45
4)b=100; ref = b-5; therefore ref becomes 95 and a also becomes 95
output is 95 95
5) ref++; ref was 95, after incremnet it becomes 96
therefore output is 96 96
6) ref= ref+a+b;
ref=96
a= 96
b=100
ref=ref+a+b=96+96+100= 292
therefore output is
a==292
b==100
ref==292
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