CS50 llamas lab 不知道怎么解决

Question

#include <cs50.h> #include <stdio.h>

int main(void) { int start; do { start = get_int("start size: "); } while (start < 9);

int end;
do
{
    end = get_int("end size: ");
}
while (end < start);

int year = 0;
do
{
    start = start + (start / 3) - (start / 4);//calculate number of years untile we reach thresholㅇ
    **year++;**
}
while (start < end);

printf("Years: %i", year);

}

enter image description here :( handles same starting and ending sizes expected "Years: 0", not "Years: 1"

i think year++ is the problem i don't know how to solve it

Answer 1

Remember, the do loop will execute the body and then test the condition (in the while ). When start and end are both 100, year will be incremented before it evaluates the while condition. Since program needs to compare start and end before it increments year , a simple while loop is appropriate.