[已解决]一道练习题

轩少不冷

求解啊！！！
怎么做怎么做

最佳答案

月排行榜 / 总排行榜

自学编程的聪聪

2020-11-20 15:27:56

#include<iostream>
using namespace std;
int main()
{
 int i,j,k,h,s;
 int a[10];
 for(i=123;i*3<=987;i++)
 {
  for(h=1;h<10;h++)
  a[h]=0;
  a[i/100]=1;
  a[i/10%10]=1;
  a[i%10]=1;
  j=i*2;
  a[j/100]=1;
  a[j/10%10]=1;
  a[j%10]=1;
  k=i*3;
  a[k/100]=1;
  a[k/10%10]=1;
  a[k%10]=1;
  for(s=0,h=1;h<10;h++)
  s=s+a[h];
  if(s==9)
  cout<<"i="<<i<<" j="<<j<<" k="<<k<<endl;
 }
 return 0;
}

跳转到最佳答案楼层

自学编程的聪聪

#include<iostream>
using namespace std;
int main()
{
 int i,j,k,h,s;
 int a[10];
 for(i=123;i*3<=987;i++)
 {
  for(h=1;h<10;h++)
  a[h]=0;
  a[i/100]=1;
  a[i/10%10]=1;
  a[i%10]=1;
  j=i*2;
  a[j/100]=1;
  a[j/10%10]=1;
  a[j%10]=1;
  k=i*3;
  a[k/100]=1;
  a[k/10%10]=1;
  a[k%10]=1;
  for(s=0,h=1;h<10;h++)
  s=s+a[h];
  if(s==9)
  cout<<"i="<<i<<" j="<<j<<" k="<<k<<endl;
 }
 return 0;
}

jitianmoshen

#include <stdio.h>
#include <stdbool.h>
int main(void)
{
    int n1,n2,n3,i;
    bool flag = false;
    for (n1 = 123;n1 * 3 < 987;n1++)
    {
        flag  = true;
        int count[10] = {0};
        n2 = n1 * 2;
        n3 = n1 * 3;
        count[n1 / 100]++;
        count[n1 / 10 % 10]++;
        count[n1 % 10]++;
        count[n2 / 100]++;
        count[n2 / 10 % 10]++;
        count[n2 % 10]++;
        count[n3 / 100]++;
        count[n3 / 10 % 10]++;
        count[n3 % 10]++;
        for (i = 1;i < 10;i++)
        {
            if (count[0] > 0 || count[i] == 0)          //如果有数字0或者1-9有数字未使用
            {
                flag  = false;
                break;
            }
        }
        if (!flag)
            continue;
        else
            printf("%5d %5d %5d\n",n1,n2,n3);
    }
    return 0;
}

我是初中生

homework1.c: In function ‘countLines’:
homework1.c:19: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘int’
homework1.c:22: error: ‘fp’ undeclared (first use in this function)
homework1.c:22: error: (Each undeclared identifier is reported only once
homework1.c:22: error: for each function it appears in.)
homework1.c:22: error: ‘filename’ undeclared (first use in this function)
homework1.c:24:18: warning: missing terminating " character
homework1.c:24: error: missing terminating " character
homework1.c:25: error: expected expression before ‘return’
homework1.c:26: error: expected ‘;’ before ‘}’ token
homework1.c:30:14: warning: missing terminating ' character
homework1.c:30: error: missing terminating ' character
homework1.c:31: error: expected expression before ‘{’ token
homework1.c:34: error: expected expression before ‘}’ token
homework1.c: In function ‘findAllDirs’:
homework1.c:63: warning: assignment makes pointer from integer without a cast
我已经检查很多次，错在哪里

轩少不冷

谢谢大家