PAT-1023 组个最小数

#include <iostream>
#include <cstdio>
#include <cstring>
#include <cmath>
#include <iomanip>
#include <stdlib.h>
using namespace std;

#define MAX 50+5

int main()
{
//freopen("in.txt", "r", stdin);
//freopen("out.txt", "w", stdout);
int num[MAX], k = 0;
for (int i = 0; i < 10; i++)
{
int t = 0;
cin >> t;
while (t--)
num[k++] = i;
}

if (0 == num[0])
{
for (int i = 1; i < k; i++)
if (num[i] != 0)
{
int t = num[0];
num[0] = num[i];
num[i] = t;
break;
}
}

for (int i = 0; i < k; i++)
{
cout << num[i];
}
return 0;
}