Cody

# Problem 1771. Polygonal numbers

Solution 2126243

Submitted on 12 Feb 2020
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### Test Suite

Test Status Code Input and Output
1   Pass
assert(P(4,3)==9)

2   Pass
s=3; n=1:5; y_correct=[1 3 6 10 15]; assert(isequal(P(s,n),y_correct))

3   Pass
s=3:6; n=4; Y_correct=[10 16 22 28]; assert(isequal(P(s,n),Y_correct))

4   Fail
s=randi([3 1000],1,10); n=1; y_correct=ones(1,10); assert(isequal(P(s,n),y_correct))

Error using zeros Maximum variable size allowed by the program is exceeded. Error in P (line 3) Poly=zeros(max(s,n)); Error in Test4 (line 4) assert(isequal(P(s,n),y_correct))

5   Fail
s=randi(1000,1,10)+2; n=5; y_correct=10*s-15; assert(isequal(P(s,n),y_correct))

Error using zeros Maximum variable size allowed by the program is exceeded. Error in P (line 3) Poly=zeros(max(s,n)); Error in Test5 (line 4) assert(isequal(P(s,n),y_correct))

6   Fail
s=[5 6 7]'; n=[2 8 9]; y_correct=[5 92 117;6 120 153;7 148 189]; assert(isequal(P(s,n),y_correct))

Error using zeros Size vector should be a row vector with real elements. Error in P (line 3) Poly=zeros(max(s,n)); Error in Test6 (line 4) assert(isequal(P(s,n),y_correct))

7   Fail
% for M.Z. s=[5 6 7]'; n=[2 8 9]; y_correct=[5 92 117;6 120 153;7 148 189]; assert(isequal(P(flipud(s),n),flipud(y_correct)))

Error using zeros Size vector should be a row vector with real elements. Error in P (line 3) Poly=zeros(max(s,n)); Error in Test7 (line 5) assert(isequal(P(flipud(s),n),flipud(y_correct)))

8   Pass
s=randi([3,1000]); n=randi([3,1000]); assert(P(s+1,n+1)-P(s,n+1)==P(3,n))