Eroare de compilare: main.cpp:11:1: error: expected primary-expression before 'long' 11 | long long sum, cnt, a[4000005]; | ^~~~ main.cpp: In function 'int main()': main.cpp:20:9: error: 'sum' was not declared in this scope 20 | sum = (sum + (cnt - a[ch[i]]) * ((long long)ch.size() - i)) % MOD; | ^~~ main.cpp:20:23: error: 'cnt' was not declared in this scope; did you mean 'int'? 20 | sum = (sum + (cnt - a[ch[i]]) * ((long long)ch.size() - i)) % MOD; | ^~~ | int main.cpp:20:29: error: 'a' was not declared in this scope 20 | sum = (sum + (cnt - a[ch[i]]) * ((long long)ch.size() - i)) % MOD; | ^ main.cpp:25:10: error: 'sum' was not declared in this scope 25 | g << sum; | ^~~ Non zero exit status: 1