请问各位大佬，本代码哪里错了？

#include<cstdio>
#include<climits>
long long a[205],b[205],dp[205][205];
int n;
int main(){
    scanf("%d",&n);
    for(int i=1;i<=n;i++) scanf("%lld",&a[i]);
    for(int i=1;i<=n;i++) scanf("%lld",&b[i]);
    b[0]=0; b[n+1]=0;
    for(int i=1;i<=n;i++) dp[i][i] = a[i] + b[i-1] + b[i+1];
    for(int l=2;l<=n;l++){
        for(int i=1;i+l-1<=n;i++){
            int j = i + l - 1;
            long long r = LLONG_MAX;
            for(int k=i;k<=j;k++){
                long long c = (k>i ? dp[i][k-1] : 0) + (k<j ? dp[k+1][j] : 0) + a[k];
                if(c < r) r = c;
            }
            dp[i][j] = r + b[i-1] + b[j+1];
        }
    }
    printf("%lld\n", dp[1][n]);
    return 0;
}