Problem 44384. Find the nearest prime number

Solution 2028234

Submitted on 19 Nov 2019 at 21:16

This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

Test	Status	Code Input and Output
1	Fail	x = 0; y_correct = 2; assert(isequal(nearestprime(x),y_correct)) idx = 1×0 empty double row vector y = 1×0 empty double row vector Assertion failed.
2	Pass	x = 5; y_correct = 5; assert(isequal(nearestprime(x),y_correct)) idx = 3 y = 5
3	Fail	x = 100; y_correct = 101; assert(isequal(nearestprime(x),y_correct)) idx = 25 y = 97 Assertion failed.
4	Pass	x = 500; y_correct = 499; assert(isequal(nearestprime(x),y_correct)) idx = 95 y = 499
5	Pass	x = 911; y_correct = 911; assert(isequal(nearestprime(x),y_correct)) idx = 156 y = 911
6	Fail	x = 2500; y_correct = 2503; assert(isequal(nearestprime(x),y_correct)) idx = 367 y = 2477 Assertion failed.
7	Pass	x = 8000; y_correct = 7993; assert(isequal(nearestprime(x),y_correct)) idx = 1007 y = 7993
8	Fail	x = 100000; y_correct = 100003; assert(isequal(nearestprime(x),y_correct)) idx = 9592 y = 99991 Assertion failed.
9	Pass	x = 1300000; y_correct = 1299989; assert(isequal(nearestprime(x),y_correct)) idx = 100021 y = 1299989
10	Fail	x = 179424710; y_correct = 179424719; assert(isequal(nearestprime(x),y_correct)) idx = 10000002 y = 179424697 Assertion failed.