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authorMohammad Sajid Anwar <mohammad.anwar@yahoo.com>2024-09-28 10:08:08 +0100
committerMohammad Sajid Anwar <mohammad.anwar@yahoo.com>2024-09-28 10:08:08 +0100
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tree618e531c33fe48d625d05f0f0e24b3fc3270cd92 /challenge-288/ulrich-rieke/cpp/ch-1.cpp
parent3b9ae8e17f9ba3d1fb2a4f612e0c4e2b271f6304 (diff)
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- Added solutions by Ulrich Rieke.
Diffstat (limited to 'challenge-288/ulrich-rieke/cpp/ch-1.cpp')
-rwxr-xr-xchallenge-288/ulrich-rieke/cpp/ch-1.cpp37
1 files changed, 37 insertions, 0 deletions
diff --git a/challenge-288/ulrich-rieke/cpp/ch-1.cpp b/challenge-288/ulrich-rieke/cpp/ch-1.cpp
new file mode 100755
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+++ b/challenge-288/ulrich-rieke/cpp/ch-1.cpp
@@ -0,0 +1,37 @@
+#include <iostream>
+#include <string>
+#include <algorithm>
+#include <cstdlib>
+
+bool isPalindrome( int number ) {
+ auto numberstring = std::to_string( number ) ;
+ auto reversed { numberstring } ;
+ std::reverse( reversed.begin( ) , reversed.end( ) ) ;
+ return reversed == numberstring ;
+}
+
+int main( ) {
+ std::cout << "Please enter a number!\n" ;
+ int number ;
+ std::cin >> number ;
+ int current = number - 1 ;
+ while ( ! isPalindrome( current ) )
+ current-- ;
+ auto minusnum = current ;
+ auto minusdiff = std::abs( minusnum - number ) ;
+ current = number + 1 ;
+ while ( ! isPalindrome( current ) )
+ current++ ;
+ auto plusnum = current ;
+ auto plusdiff = std::abs( plusnum - number ) ;
+ if ( plusdiff == minusdiff )
+ std::cout << minusnum << '\n' ;
+ else {
+ if ( plusdiff < minusdiff )
+ std::cout << plusnum << '\n' ;
+ else
+ std::cout << minusnum << '\n' ;
+ }
+ return 0 ;
+}
+