OJ-Problems-Source/HDOJ/4105_autoAC.cpp
2016-09-04 14:28:52 +08:00

54 lines
1.2 KiB
C++

#include<cstdio>
#include<cstring>
#include<iostream>
using namespace std;
char a[5000];
int main()
{
int i,j,k,n,m,b,c;
while (1)
{
if (scanf("%d",&n)==EOF) break;
scanf("%s",a);
for (i=0;i<n;i++) a[i]-='0';
bool f=false;
int ans=0;
b=0;
c=10;
for (i=0;i<n;i++)
{
if (f==false)
{
if (c>a[i]) b=a[i];
else
{
i++;
b=a[i];
}
}
else
{
if (a[i]>b) c=a[i];
else
{
if (a[i]==0)
{
while (a[i]==0) i++;
b=0;
c=a[i];
}
else
{
i++;
c=a[i-1]*10+a[i];
}
}
}
if (i>=n) break;
ans++;f=!f;
}
cout<<ans-1<<endl;
}
return 0;
}