Three students, studying the use of arrays, presented the
following statements.
I - The...
Health, 05.11.2020 16:00 mbrisen7420
Three students, studying the use of arrays, presented the
following statements.
I - The first student developed code 1 and concluded that his code makes use of
correct array and C ++ language.
#include <iostream>
using namespace std;
int main () {
int i, j, m [12] [12];
for (i = 0; i <12; i ++) {
for (j = 0; j <12; j ++) {
m [i] [j] = j% 2 - 1;
}
}
for (i = 0; i <12; i ++) {
for (j = 0; j <12; j ++) {
m [i] [j] = -1 - m [i] [j];
}
}
}
Code 1
II - The second student developed code 2 and concluded that his code does
correct use of arrays and the C ++ language.
#include <iostream>
using namespace std;
int main () {
double a [10] [5] = {{10}, {5}, {6}}, x [5] = {5}, b [10] = {1};
int i, j, m = 10, n = 5;
for (i = 0; i <m; i ++) {
b [i] = 10.0;
for (j = 0; j <n; j ++) {
b [i] = b [i] + a [i] [j] * x [j];
}
}
}
Code 2
III - The third student developed code 3 and concluded that his code makes use of
correct array and C ++ language. # include <iostream>
#include <iostream>
using namespace std;
const int N = 2;
int main () {
int i, j, k, a [N] [N] = {2,0,0,1}, b [N] [N] = {1,1,1,1}, c [N] [N] = {1,2,3,4};
for (i = 0; i <N; i ++) {
for (j = 0; j <N; j ++) {
c [i] [j] = 0;
for (k = 0; k <N; k ++) {
c [i] [j] + = a [i] [k] * b [k] [j];
}
}
}
}
Code 3
Check the correct alternative:
a) Only alternative I is true
b) Only alternative II is true
c) Alternatives I and II are true
d) Alternatives II and III are true
e) All statements are true
Answers: 2
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