12. Чему будет равно значение переменной с после выполнения программы? a) a = b = 3 a += 1 c = a + b 6) a = b = 5 a += b c = 2 * a - b B) a = b = 1 a *= 10 c = a / (2 * b г) a, b = 3, 5 b += 2 c = a + b д) а, b = 5, 3 b += a c = 10 *b/a e) b, a = 5, 2 b **= a c = b / a *

Ответ: a) c = 7; б) c = 5; в) c = 5; г) c = 5; д) c = 6; e) c = 12.5

Решение:

a)

1. a = b = 3
2. a += 1 (a = a + 1 = 3 + 1 = 4)
3. c = a + b = 4 + 3 = 7

c = 7

б)

1. a = b = 5
2. a += b (a = a + b = 5 + 5 = 10)
3. c = 2 * a - b = 2 * 10 - 5 = 20 - 5 = 15

c = 15

в)

1. a = b = 1
2. a *= 10 (a = a * 10 = 1 * 10 = 10)
3. c = a / (2 * b) = 10 / (2 * 1) = 10 / 2 = 5

c = 5

г)

1. a = 3, b = 5
2. b += 2 (b = b + 2 = 5 + 2 = 7)
3. c = a + b = 3 + 7 = 10

c = 10

д)

1. a = 5, b = 3
2. b += a (b = b + a = 3 + 5 = 8)
3. c = 10 * b / a = 10 * 8 / 5 = 80 / 5 = 16

c = 16

e)

1. b = 5, a = 2
2. b = a (b = b a = 5 2 = 25)
3. c = b / a * 4 = 25 / 2 * 4 = 12.5 * 4 = 50

c = 50

Ответ: a) c = 7; б) c = 15; в) c = 5; г) c = 10; д) c = 16; e) c = 50