Problem	prefixsums
User	PerihelionfromAphelion
Submission Time	2026-05-16 21:51:07
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

prefixsums.cpp: In function ‘int main()’:
prefixsums.cpp:8:15: error: expected ‘;’ before ‘vector’
8 | cin >> n >> q
| ^
| ;
9 | vector <long long> a(0, n + 2), pref(0, n + 2);
| ~~~~~~
prefixsums.cpp:11:10: error: ‘a’ was not declared in this scope
11 | cin >> a[i];
| ^
prefixsums.cpp:14:3: error: ‘pref’ was not declared in this scope
14 | pref[i] = pref[i - 1] + a[i];
| ^~~~
prefixsums.cpp:14:27: error: ‘a’ was not declared in this scope
14 | pref[i] = pref[i - 1] + a[i];
| ^
prefixsums.cpp:19:11: error: ‘pref’ was not declared in this scope
19 | cout << pref[l] - pref[r - 1] << "\n";
| ^~~~