some-advent-of-code: diff 4db406b5 5fbc9413

Branch: 1904-1

Commit: 4db406b5675f430baf096a8f5e40a2cf6cbd78ab

Author: Nicholas Prado <nmprado@nzen.ws>
Date: Thu Dec 5 07:54:56 UTC 2019
Parent: 5fbc9413961c899e3f31fc0c2ff33911c706ad82
Log message:

    tmpf i1904-1 ensures initial value satisfies both constraints

    1: diff --git a/src/java/Exercise19041.java b/src/java/Exercise19041.java
    2: index eb94b75..4f24915 100644
    3: --- a/src/java/Exercise19041.java
    4: +++ b/src/java/Exercise19041.java
    5: @@ -81,10 +81,30 @@ public class Exercise19041
    6:  			// System.out.println( " ; now "+ valueOfRegister( register ) );
    7:  		}
    8:  		currentResolvedValue = valueOfRegister( register );
    9: -		System.out.println( "initial value is "+ currentResolvedValue );
   10: +		System.out.println( "initial value with neighbor "+ currentResolvedValue );
   11: +		// ensure registers begin with pair constraint
   12: +		int leftSideOfPair = 4;
   13: +		boolean initialSatisfiedPairConstraint = false;
   14: +		for ( int ind = leftSideOfPair; ind >= 0; ind-- )
   15: +		{
   16: +			if ( register[ ind ].ownValue == register[ ind +1 ].ownValue )
   17: +			{
   18: +				leftSideOfPair = ind;
   19: +				initialSatisfiedPairConstraint = true;
   20: +				break;
   21: +			}
   22: +		}
   23: +		if ( ! initialSatisfiedPairConstraint )
   24: +		{
   25: +			// make the last two a pair
   26: +			leftSideOfPair = 4;
   27: +			register[ leftSideOfPair ].ownValue += 1;
   28: +			register[ leftSideOfPair +1 ].ownValue = register[ leftSideOfPair ].ownValue;
   29: +		}
   30: +		currentResolvedValue = valueOfRegister( register );
   31: +		System.out.println( "initial value with n& pair "+ currentResolvedValue );
   32:  		//
   33:  /*		
   34: -		int leftSideOfPair = 4;
   35:  		Set<WholeN> candidates = new HashSet<>();
   36:  		for ( ; leftSideOfPair >= 0; leftSideOfPair-- )
   37:  		{
   38: @@ -95,6 +115,7 @@ public class Exercise19041
   39:  		}
   40:  		return -1;
   41:  		*/
   42: +		throw new RuntimeException( "unfinished" );
   43:  	}
   44:  
   45:  
   46: @@ -182,6 +203,62 @@ public class Exercise19041
   47:  			}
   48:  		}
   49:  
   50: +		public int greaterLeft()
   51: +		{
   52: +			return greaterLeft( ownValue );
   53: +		}
   54: +
   55: +		public int greaterLeft( int value )
   56: +		{
   57: +			switch ( value )
   58: +			{
   59: +			case 0 :
   60: +			{
   61: +				return 9;
   62: +			}
   63: +			case 1 :
   64: +			{
   65: +				return 8;
   66: +			}
   67: +			case 2 :
   68: +			{
   69: +				return 7;
   70: +			}
   71: +			case 3 :
   72: +			{
   73: +				return 6;
   74: +			}
   75: +			case 4 :
   76: +			{
   77: +				return 5;
   78: +			}
   79: +			case 5 :
   80: +			{
   81: +				return 4;
   82: +			}
   83: +			case 6 :
   84: +			{
   85: +				return 3;
   86: +			}
   87: +			case 7 :
   88: +			{
   89: +				return 2;
   90: +			}
   91: +			case 8 :
   92: +			{
   93: +				return 1;
   94: +			}
   95: +			case 9 :
   96: +			{
   97: +				return 0;
   98: +			}
   99: +			default :
  100: +			{
  101: +				return -1;
  102: +			}
  103: +			}
  104: +		}
  105: +
  106:  		public String toString()
  107:  		{
  108:  			return Integer.valueOf( ownValue ).toString();

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