Cody

# Problem 44384. Find the nearest prime number

Solution 2028248

Submitted on 19 Nov 2019 at 21:29
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### Test Suite

Test Status Code Input and Output
1   Fail
x = 0; y_correct = 2; assert(isequal(nearestprime(x),y_correct))

d = 0 y = -2 2

Error using isprime (line 19) All entries of X must be nonnegative integers. Error in nearestprime (line 7) y = y(find(isprime(y),'first')) Error in Test1 (line 3) assert(isequal(nearestprime(x),y_correct))

2   Fail
x = 5; y_correct = 5; assert(isequal(nearestprime(x),y_correct))

d = 0 y = 5 5

Error using find Second argument must be a positive scalar integer. Error in nearestprime (line 7) y = y(find(isprime(y),'first')) Error in Test2 (line 3) assert(isequal(nearestprime(x),y_correct))

3   Fail
x = 100; y_correct = 101; assert(isequal(nearestprime(x),y_correct))

d = 0 y = 99 101

Error using find Second argument must be a positive scalar integer. Error in nearestprime (line 7) y = y(find(isprime(y),'first')) Error in Test3 (line 3) assert(isequal(nearestprime(x),y_correct))

4   Fail
x = 500; y_correct = 499; assert(isequal(nearestprime(x),y_correct))

d = 0 y = 499 501

Error using find Second argument must be a positive scalar integer. Error in nearestprime (line 7) y = y(find(isprime(y),'first')) Error in Test4 (line 3) assert(isequal(nearestprime(x),y_correct))

5   Fail
x = 911; y_correct = 911; assert(isequal(nearestprime(x),y_correct))

d = 0 y = 911 911

Error using find Second argument must be a positive scalar integer. Error in nearestprime (line 7) y = y(find(isprime(y),'first')) Error in Test5 (line 3) assert(isequal(nearestprime(x),y_correct))

6   Fail
x = 2500; y_correct = 2503; assert(isequal(nearestprime(x),y_correct))

d = 0 y = 2497 2503

Error using find Second argument must be a positive scalar integer. Error in nearestprime (line 7) y = y(find(isprime(y),'first')) Error in Test6 (line 3) assert(isequal(nearestprime(x),y_correct))

7   Fail
x = 8000; y_correct = 7993; assert(isequal(nearestprime(x),y_correct))

d = 0 y = 7993 8007

Error using find Second argument must be a positive scalar integer. Error in nearestprime (line 7) y = y(find(isprime(y),'first')) Error in Test7 (line 3) assert(isequal(nearestprime(x),y_correct))

8   Fail
x = 100000; y_correct = 100003; assert(isequal(nearestprime(x),y_correct))

d = 0 y = 99997 100003

Error using find Second argument must be a positive scalar integer. Error in nearestprime (line 7) y = y(find(isprime(y),'first')) Error in Test8 (line 3) assert(isequal(nearestprime(x),y_correct))

9   Fail
x = 1300000; y_correct = 1299989; assert(isequal(nearestprime(x),y_correct))

d = 0 y = 1299989 1300011

Error using find Second argument must be a positive scalar integer. Error in nearestprime (line 7) y = y(find(isprime(y),'first')) Error in Test9 (line 3) assert(isequal(nearestprime(x),y_correct))

10   Fail
x = 179424710; y_correct = 179424719; assert(isequal(nearestprime(x),y_correct))

d = 0 y = 179424701 179424719

Error using find Second argument must be a positive scalar integer. Error in nearestprime (line 7) y = y(find(isprime(y),'first')) Error in Test10 (line 3) assert(isequal(nearestprime(x),y_correct))