过样例，wa3 T7.

先不管TLE，谁能帮我解决万恶的WA???

#include<bits/stdc++.h>
#define re register int
#define rll register long long
const int mul=19260817;
using namespace std;
int n, m;
inline int read()
{
    re x = 0;
    char ch = getchar();
    while (ch < '0' || ch > '9')ch = getchar();
    while (ch >= '0' && ch <= '9')x = x * 10 + ch - '0', ch = getchar();
    return x;
}
inline void write(rll x)
{
    if (x > 9) {
        write(x / 10);
    }
    putchar(x % 10 + '0');
}
int dist[200001],sum[200001],x,l,r,ans;
int main()
{
	n = read(), m = read();
	for(re i = 2;i <= n;i ++)dist[i] = read() + dist[i - 1];
	for(re i = 1;i <= n;i ++)sum[i] = read();
	while(m --)
	{
		x = read(), l = read(), r = read();
		ans = 0;
		for(re i = l;i <= r;i ++)
		{
			ans += ((sum[i] % mul) * (abs(dist[i] - dist[x]) % mul)) % mul;
		}
		write(ans);
		putchar('\n');
	}
	return 0;	
}