1 Consider the following array int a 1 2 3 4 5 4 3 2 1 0
1. Consider the following array:
int[] a = { 1, 2, 3, 4, 5, 4, 3, 2, 1, 0 };
What are the contents of the array a after each of the following loops complete?
a. for (int i = 1; i < 10; i++) { a[i] = a[i - 1]; }
b. for (int i = 9; i > 0; i--) { a[i] = a[i - 1]; }
c. for (int i = 0; i < 9; i++) { a[i] = a[i + 1]; }
d. for (int i = 8; i >= 0; i--) { a[i] = a[i + 1]; }
e. for (int i = 1; i < 10; i++) { a[i] = a[i] + a[i - 1]; }
f. for (int i = 1; i < 10; i = i + 2) { a[i] = 0; }
g. for (int i = 0; i < 5; i++) { a[i + 5] = a[i]; }
for (int i = 1; i < 5; i++) { a[i] = a[9 - i]; }
Solution
Given:
int[] a = { 1, 2, 3, 4, 5, 4, 3, 2, 1, 0 };
size = 10
a)
for (int i = 1; i < 10; i++) {
a[i] = a[i - 1];
}
a = [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
b)
for (int i = 9; i > 0; i--) { a[i] = a[i - 1]; }
a = [ 1, 1, 2, 3, 4, 5, 4, 3, 2, 1 ]
c)
for (int i = 0; i < 9; i++) { a[i] = a[i + 1]; }
a = [ 2, 3, 4, 5, 4, 3, 2, 1, 0, 0 ]
d. for (int i = 8; i >= 0; i--) { a[i] = a[i + 1]; }
a = [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
e. for (int i = 1; i < 10; i++) { a[i] = a[i] + a[i - 1]; }
a = [ 1, 3, 6, 10, 15, 19, 22, 24, 25, 25 ]
f. for (int i = 1; i < 10; i = i + 2) { a[i] = 0; }
a = [ 1, 0, 3, 0, 5, 0, 3, 0, 1, 0 ]
g. for (int i = 0; i < 5; i++) { a[i + 5] = a[i]; }
a = [ 1, 2, 3, 4, 5, 1, 2, 3, 4, 5 ]
h. for (int i = 1; i < 5; i++) { a[i] = a[9 - i]; }
a = [ 1, 1, 2, 3, 4, 4, 3, 2, 1, 0 ]
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