另类求组合数

Posted 2020-09-28 starry

ll C[220][220];
void getC(){
    memset(C,0,sizeof(C));
    for(int i = 0; i < 220; i ++){
        C[i][0] = 1;
        for(int j = 1; j <= i; j ++){
            C[i][j] = (C[i-1][j-1]+C[i-1][j])%Mod;
        }
    }
}