Re: [問題] 小弟寫了一個程式 就差了一點
小弟我也是個剛學C/C++的新手
看了這篇試著寫了一下 請各位不吝指教!!^^
#include <stdio.h>
#include <stdlib.h>
int primetest(int);
int main()
{ int j(0),n;
printf("enter a number:");
scanf("%d",&n);
int a[n];
printf("N have factor(s):"); ┐
for(int i=1;i<=n;i++){ │這部分印出所有因數
if(n%i==0){ │
printf("%d\t",i); ┘
if(primetest(i)==0){ ┐
a[j]=i; │這部分把上面得到的因數做質因數測試
j++; │並將結果存進向量a[]
} ┘
}
}
printf("\n");
printf("N has prime(s):"); ┐
for(int i=1;i<j;i++){ │列印出質因數
printf("%d\t",a[i]); │
} ┘
printf("\n");
system("pause");
return 0;
}
int primetest(int p){ ┐
int counter(0); │
for(int i=2;i<=p/2;i++){ │
if(p%i==0) │質因數測試器
counter++; │
} │
return counter; │
} ┘
--
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