UVA Problem 621 ( Secret Research ) Solution

Problem Solving, UVa

 

 

#include <bits/stdc++.h>

using namespace std;

int main()

{

int tc;

char s[2000],l;

cin>>tc;

while (tc--)

{

scanf("%s", s);

l = strlen(s);

if (strcmp(s, "1") == 0 || strcmp(s, "4") == 0 || strcmp(s, "78") == 0)

printf("+\n");

else if ( s[l - 1] == '5' && s[l - 2] == '3')

printf("-\n");

else if (s[0] == '9' && s[l - 1] == '4')

printf("*\n");

else if (s[0] == '1' && s[1] == '9' && s[2] == '0')

printf("?\n");

else

printf("+\n");

}

return 0;

}

 

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