Problem	missingnumber
User	YokeKai314
Submission Time	2026-01-16 14:37:25
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

missingnumber.cpp: In function ‘int32_t main()’:
missingnumber.cpp:8:20: error: expected ‘;’ before ‘for’
8 | a = n*(n + 1)/2
| ^
| ;
9 | for(int i = 0; i < n; i++){
| ~~~
missingnumber.cpp:9:20: error: ‘i’ was not declared in this scope
9 | for(int i = 0; i < n; i++){
| ^