void fun(void) {

int a, b, c; /* definition 1 */

......

while (...) {

int b, c, d; /* definition 2 */

...... <---- point 1

while (...) {

int c, d, e; /* definition 3 */

...... <---- point 2

}

...... <---- point 3

}

...... <----- point 4

}

For each of the four marked points in this function, list each visible variable, along with the number of definition statement that defines it.

For example: (your answer must be in the same format)

point 1: a 1

b 2

c 2

d 2