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Merge pull requestneetcode-gh#3290 from a1exanddrovich/1849-dev

Create: 1849-splitting-a-string-into-descending-consecutive-values.java

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	`1`	`+importjava.math.BigInteger;`
	`2`	`+`
	`3`	`+classSolution {`
	`4`	`+publicbooleansplitString(Strings) {`
	`5`	`+for (inti =0;i <s.length() -1;i++) {`
	`6`	`+BigIntegercurValue =newBigInteger(s.substring(0,i +1));`
	`7`	`+if (backtrack(i +1,s,curValue)) {`
	`8`	`+returntrue;`
	`9`	`+ }`
	`10`	`+ }`
	`11`	`+`
	`12`	`+returnfalse;`
	`13`	`+ }`
	`14`	`+`
	`15`	`+privatebooleanbacktrack(intstartIndex,`
	`16`	`+Strings,`
	`17`	`+BigIntegerlastValue) {`
	`18`	`+if (startIndex >=s.length()) {`
	`19`	`+returntrue;`
	`20`	`+ }`
	`21`	`+`
	`22`	`+for (inti =startIndex;i <s.length();i++) {`
	`23`	`+BigIntegercurValue =newBigInteger(s.substring(startIndex,i +1));`
	`24`	`+if (lastValue.subtract(curValue).compareTo(BigInteger.ONE) ==0 &&`
	`25`	`+backtrack(i +1,s,curValue)) {`
	`26`	`+returntrue;`
	`27`	`+ }`
	`28`	`+ }`
	`29`	`+`
	`30`	`+returnfalse;`
	`31`	`+ }`
	`32`	`+}`

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