要求：求最大递增数

如：1231123451

输出12345

#include<stdio.h>

#include<assert.h>

void find(char *s)

{

	int maxleng = 0;

	int length = 1;

	int pos = 0;

	int i = 0;

	while(s[i] !='\0')

	{

		if((s[i])<'0'||(s[i]>'9'))

		{

		    assert(0);

		}

		if((s[i+1]-'0') > (s[i] -'0'))

		{

			length++;

			i++;

			continue;

		}

		if(length > maxleng)

		{

			maxleng = length;

			pos = i -maxleng;

			pos++;

			length = 1;

			i++;

			continue;

		}

		i++;

		length = 1;

	}

	for(int j =0; j < maxleng; j++)

	{

		printf("%c",s[pos++]);

	}

}

int main( )

{

	char s[100];

	scanf("%s",s);

	find(s);

	return 0;

}