Statements with functions

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This page has some examples and questions involving assignment statements with functions.

Note that all functions use call by value and return a value to be used in an expression (in the right part of an assignment statement).

Here is the C code.

#include <stdio.h>

int n(int k) {
	return k / 4;
	}

int w(int v) {
	return 6 + v;
	}

int t(int u, int m) {
	return u * m;
	}

int main() {
	int f, a, p, e, z;
	f = 3;
	a = 7;
	p = n(a);
	e = w(p);
	z = t(f, e);
	printf("%d",z % 10);
	return 0;
	}

Here are the final values of the variables in the program (main).

f == 3 a == 7 p == 1 e == 7 z == 21

The final value of variable z is 21. The output is the remainder left over when z is divided by 10, which is 1 (the answer). Here is the output of the C code.

1

Here is the C code.

#include <stdio.h>

int y(int d) {
	return 7 + d;
	}

int n(int h) {
	return h / 3;
	}

int g(int v, int u) {
	return v * u;
	}

int main() {
	int e, x, k, c, f;
	e = 6;
	x = 5;
	k = y(x);
	c = n(k);
	f = g(e, c);
	printf("%d",f % 10);
	return 0;
	}

Here are the final values of the variables in the program (main).

e == 6 x == 5 k == 12 c == 4 f == 24

The final value of variable f is 24. The output is the remainder left over when f is divided by 10, which is 4 (the answer). Here is the output of the C code.

4

Here is the C code.

#include <stdio.h>

int g(int a) {
	return a * 7;
	}

int p(int y) {
	return y / 5;
	}

int q(int t, int b) {
	return t + b;
	}

int main() {
	int k, m, e, v, w;
	k = 3;
	m = 4;
	e = g(k);
	v = p(m);
	w = q(e, v);
	printf("%d",w % 10);
	return 0;
	}

Here are the final values of the variables in the program (main).

k == 3 m == 4 e == 21 v == 0 w == 21

The final value of variable w is 21. The output is the remainder left over when w is divided by 10, which is 1 (the answer). Here is the output of the C code.

1