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Wap to print sum of given series

1+11+111+.......+n

7/9/2017 9:11:00 AM

shakti

6 Answers

New Answer

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for(int I=0;I<n;I++) { s=s+(int)(Math.pow(10,I)); p=p+s; } print p as answer

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very very thanks

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You can use classical maths instead... A simple formula (n-1)+(10^n -1)/9 From arithmetic progression by writing it as 1+(10+1)+(100+1)+....... If you want to make it a program, just apply the formula...

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My mistake..... My suggestion is wrongg

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Use this instead: Sum of [(n-k)*10^k] for k=0,1,2...(n-1) and n=1,2,3.... I guess

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Here is the idea (C++) but it cant be too different in java i think https://code.sololearn.com/cm78p58M5sW9/?ref=app Just the algorythm...