| Secret Research |
At a certain laboratory results of secret research are thoroughly encrypted. A result of a single experiment is stored as an information of its completion:
`positive result',`negative result',`experiment failed' or`experiment not completed'
The encrypted result constitutes a string of digits S, which may take one of the following forms:
positive result S = 1 or S = 4 or S = 78
negative result S = S35
experiment failed S = 9S4
experiment not completed S = 190S
(A sample result S35 means that if we add digits 35 from the right hand side to a digit sequence then we shall get the digit sequence corresponding to a failed experiment)
You are to write a program which decrypts given sequences of digits.
Input
A integer
n stating the number of encrypted results and thenconsecutive
n lines, each containing a sequence of digits given as ASCII strings.
Output
For each analysed sequence of digits the following lines should be sent to output (in separate lines):
+ for a positive result
- for a negative result
* for a failed experiment
? for a not completed experiment
In case the analysed string does not determine the experiment result, a first match from the above list should be outputted.
Sample Input
4
78
7835
19078
944
Sample Output
+
-
?
*
#include<stdio.h>
#include<string.h>
int main()
{
int n;
scanf("%d",&n);
while(n--)
{
char a[1005]={0};
scanf("%s",a);
if(strlen(a)<=2)
puts("+");
else if(a[strlen(a)-1]=='5'&&a[strlen(a)-2]=='3')
puts("-");
else if(a[0]=='9'&&a[strlen(a)-1]=='4')
puts("*");
else if(a[0]=='1'&&a[1]=='9'&&a[2]=='0')
puts("?");
}
return 0;
}