Eroare de compilare: main.cpp: In function 'int main()': main.cpp:14:12: error: 'x' was not declared in this scope s -= n * x; ^ main.cpp:22:11: error: 'a' was not declared in this scope if (a[i & 1][j] >= mod) ^ main.cpp:22:26: error: 'mod' was not declared in this scope if (a[i & 1][j] >= mod) ^~~ main.cpp:25:21: error: 'j' was not declared in this scope fout << dp[n & 1][j]; ^ Non zero exit status: 1