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] !=' ')
{
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;
}