Problem	crypto
User	Box
Submission Time	2026-01-26 14:31:38
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

crypto.cpp: In function ‘int main()’:
crypto.cpp:48:24: error: ‘__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type’ {aka ‘struct std::pair<long long int, long long int>’} has no member named ‘a’
48 | ans+=(((seq[i].a%mod-cnt_s%mod)%mod*f[n-1-i])%mod)%mod;
| ^