Midterm Question 4 - Makeup

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Write a program that get the input of two integers n and m(n < m). Find out all prime numbers between n and m (not include n and m), then display them on the screen.

寫一個程式 輸入兩個整數n和m (n < m)，找出所有n到m之間的質數(不包含n和m)。

Example input 1

1 10

Example output 1

2 3 5 7

 

Example input 2

10 20

Example output 2

11 13 17 19

 

[Exam] asked in Midterm by (12.1k points)
ID: 36753 - Available when: 2017-11-15 14:10 - Due to: Unlimited | 6.4k views

22 Answers

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Hidden content!
#include<stdio.h>
int main()
{
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#include<stdio.h>

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answered by (-32 points)
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prog.c: In function 'main':
prog.c:15:16: error: expected ';' before 'break'
                break;
                ^~~~~
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#include <stdio.h>
int main()
{
    int n1, n2, i, c=0;
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}
answered by (-233 points)
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Hidden content!
#include<stdio.h>
int main()
{
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answered by (-32 points)
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Hidden content!
#include <stdio.h>


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{
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}
answered by (-107 points)
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prog.c: In function 'main':
prog.c:12:14: error: expected ')' before ';' token
    while (x=2; x=num1-1;++x){
              ^
prog.c:16:19: error: expected ';' before ')' token
     for (x==num1/2){
                   ^
prog.c:16:19: error: expected expression before ')' token
prog.c:23:24: error: expected ')' before 'num1'
             printf("%d"num1);
                        ^~~~
prog.c:23:22: warning: format '%d' expects a matching 'int' argument [-Wformat=]
             printf("%d"num1);
                      ^
prog.c:33:5: error: expected ';' before '}' token
     }
     ^
commented by (4.3k points)
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Hidden content!
#include<stdio.h>
int num_is_prime(int x)
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answered by (-255 points)
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Hidden content!
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Case 3: Wrong output
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Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
    int n,m;
    int i;
    int prime;
    int flag;
    int count=1;


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    return 0;
}
answered by (-193 points)
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