Problem	prefixsums
User	Jaytryouts
Submission Time	2026-10-31 22:20:03
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

prefixsums.cpp: In function ‘int main()’:
prefixsums.cpp:26:30: error: ‘l’ was not declared in this scope
26 | cout << prefix[r] - prefix[l - 1] << "\n";
| ^