Problem	prefixsums
User	yhmixeI
Submission Time	2024-12-09 14:45:10
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

prefixsums.cpp: In function ‘int main()’:
prefixsums.cpp:13:9: error: ‘psum’ was not declared in this scope
13 | cout<<psum[b]-psum[a-1]<<"\n";
| ^~~~