0_0_39415256_17910.cpp:9:41: error: conflicting declaration 'int n' 9 | int p[N], q[N], s[2 * N], dp[2 * N][2], n; | ^ 0_0_39415256_17910.cpp:6:4: note: previous declaration as 'll n' 6 | ll n, m, L; | ^