OJ-Problems-Source/HDOJ/1409_autoAC.cpp

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#include <iostream>
#include <string.h>
#include <stdio.h>
using namespace std;
char s[200];
int pz(int x,int y)
{
int ys=0,i;
for(i=x;i<=y;i++)
{
if(i==x)
{
if(s[i]=='+'||s[i]=='-')
continue;
else if(s[i]>='0'&&s[i]<='9')
ys++;
else
return 0;
}
else
{
if(s[i]>='0'&&s[i]<='9')
ys++;
else
{
return 0;
}
}
}
if(ys>0)
return 1;
else
return 0;
}
int pd(int x,int y)
{
int ys=0,i;
for(i=x;i<=y;i++)
{
if(i==x)
{
if((s[i]=='+'||s[i]=='-')||(s[i]>='0'&&s[i]<='9'))
continue;
else if(s[i]=='.')
ys++;
else
return 0;
}
else
{
if(s[i]>='0'&&s[i]<='9')
continue;
else if(s[i]=='.')
ys++;
else
return 0;
}
}
if(ys==1)
return 1;
else
return 0;
}
int main()
{
int t,i,ye,e,T;
scanf("%d",&T);
getchar();
while(T--)
{
ye=0;
gets(s);
t=strlen(s);
for(i=0;i<t;i++)
{
if(s[i]=='E')
{
ye=1;
e=i;
}
}
if(ye==1)
{
if((pz(0,e-1)||pd(0,e-1))&&pz(e+1,t-1))
printf("YES\n");
else
printf("NO\n");
}
else
{
if(pz(0,t-1)||pd(0,t-1))
printf("YES\n");
else
printf("NO\n");
}
}
return 0;
}