Submission #68747728

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Source Code Expand

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

const int N = 2e5+5;

int a[N];
int b[N];

signed main()
{
    cin.tie(0);
    ios_base::sync_with_stdio(false);
    ///
    int n, q;
    cin >> n >> q;
    for (int i = 0; i < n; ++i) {
        cin >> a[i];
    }
    int ans = 0;
    for (int i = 0; i < n; ++i) {
        cin >> b[i];
        ans += min(a[i], b[i]);
    }
    for (int i = 0; i < q; ++i) {
        char c;
        int x, v;
        cin >> c >> x >> v;
        --x;
        ans -= min(a[x], b[x]);
        if (c == 'A') a[x] = v;
        else b[x] = v;
        ans += min(a[x], b[x]);
        cout << ans << '\n';
    }
}

Submission Info

Judge Result