Problem 509. Count photos

Solution 77107

Submitted on 16 Apr 2012 by Kuifeng

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Test	Status	Code Input and Output
1	Pass	%% x = 10; y_correct = 45; assert(isequal(photos(x),y_correct))
2	Pass	%% x = 100; y_correct = 4950; assert(isequal(photos(x),y_correct))
3	Pass	%% x = 1000; y_correct = 499500; assert(isequal(photos(x),y_correct))

Test

Status

Code Input and Output

Pass

%% x = 10; y_correct = 45; assert(isequal(photos(x),y_correct))

Pass

%% x = 100; y_correct = 4950; assert(isequal(photos(x),y_correct))

Pass

%% x = 1000; y_correct = 499500; assert(isequal(photos(x),y_correct))

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