Problem 39. Which values occur exactly three times?

Solution 668276

Submitted on 8 May 2015 by Meade

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Meade on 8 May 2015

Slower, but actually readable in 2 lines.

Test	Status	Code Input and Output
1	Pass	%% x = [1 2 5 2 2 7 8 3 3 1 3 8 8 8]; y_correct = [2 3]; assert(isequal(threeTimes(x),y_correct)) t1 = 1 2 3 4 5 6 7 8 y = 2 3
2	Pass	%% x = [1 1 1]; y_correct = [1]; assert(isequal(threeTimes(x),y_correct)) t1 = 1 y = 1
3	Pass	%% x = [5 10 -3 10 -3 11 -3 5 5 7]; y_correct = [-3 5]; assert(isequal(threeTimes(x),y_correct)) t1 = -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 y = -3 5

Test

Status

Code Input and Output

Pass

%% x = [1 2 5 2 2 7 8 3 3 1 3 8 8 8]; y_correct = [2 3]; assert(isequal(threeTimes(x),y_correct))

t1 = 1 2 3 4 5 6 7 8 y = 2 3

Pass

%% x = [1 1 1]; y_correct = [1]; assert(isequal(threeTimes(x),y_correct))

t1 = 1 y = 1

Pass

%% x = [5 10 -3 10 -3 11 -3 5 5 7]; y_correct = [-3 5]; assert(isequal(threeTimes(x),y_correct))

t1 = -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 y = -3 5