How will you do it? (II)

Computer Science Level 3

∑ a = 1 10 ∑ b = a 10 ∑ c = b 10 ( a + b + c ) = ? \sum_{a=1}^{10} \sum_{b=a}^{10} \sum_{c=b}^{10} {(a+b+c)}= \, ?

this problem is a part of the set Fundamental Programming
2420 3036 2024 3630

Zeeshan Ali by Zeeshan Ali , 25, Pakistan

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3 solutions

Zeeshan Ali
Jan 3, 2016

Here is an algorithm which does your required work; 

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    sum<-0
    for a<-1 to 10
        for b<-a to 10
            for c<-b to 10
                sum<-sum+a+b+c
    return sum

Isn't that so simple.!?

3 Helpful 0 Interesting 0 Brilliant 0 Confused
Vignesh Suresh
Jan 5, 2016

int count=0; 

for(int a=1;a<=10;a++)
for(int b=a;b<=10;b++)
for(int c=b;c<=10;c++)
count+=a+b+c;
1 Helpful 0 Interesting 0 Brilliant 0 Confused
Masbahul Islam
Jan 4, 2016

Excel vba code:

s = 0

For a = 1 To 10

For b = a To 10

For c = b To 10

s = s + a + b + c

Next c, b, a

MsgBox s

1 Helpful 0 Interesting 0 Brilliant 0 Confused

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