Submission #18363020

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

int main()
{
    static const int mod = 1e+5;
    int n, m;
    cin >> n >> m;
    vector<int> s_vec(n - 1);
    for (int i = 0; i < n - 1; ++i)
        cin >> s_vec.at(i);
    vector<int> a_vec(m);
    for (int i = 0; i < m; ++i)
        cin >> a_vec.at(i);
    vector<int> cumsum(n, 0);
    for (int i = 0; i < n - 1; ++i)
        cumsum.at(i + 1) = cumsum.at(i) + s_vec.at(i);
    int src = 0;
    int sum = 0;
    for (int a : a_vec) {
        int dst = src + a;
        sum += abs(cumsum.at(dst) - cumsum.at(src));
        sum %= mod;
        src = dst;
    }
    cout << sum << endl;
}

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Judge Result