Submission #1335882

#TimeUsernameProblemLanguageResultExecution timeMemory
1335882doantaolaaidiRelativnost (COCI15_relativnost)C++20
140 / 140
2197 ms23036 KiB
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define AC "test"
#define foru(i, l, r) for (int i = (l); i <= (r); i++)
#define ford(i, l, r) for (int i = (l); i >= (r); i--)
#define fi first
#define se second

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vii;
typedef vector<ll> vll;

const ll inf = 1e9 + 7;
const ll linf = 1e18 + 7;
const int mod = 1e4 + 7;
const int maxn = 1e5 + 1;
const int base = 31;

void fastIO(){
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
}

ll mul(ll a, ll b){
    return ((a % mod) * (b % mod)) % mod;
}

ll Pow(ll a, ll b){
    ll ans = 1;
    while (b){
        if (b % 2) ans = mul(ans, a);
        a = mul(a, a);
        b/=2;
    }
    return ans;
}

struct node{
    int al, li[20];
};

node st[4 * maxn];
int n, q, c, a[maxn], b[maxn], x, y, clsf, sum;

void update(int id, int l, int r, int pos, int nx, int ny){
    if (l > pos || r < pos) return;
    if (l == r){
        st[id].li[0] = ny % mod;
        st[id].li[1] = nx % mod;
        st[id].al = (nx + ny) % mod;
        return;
    }
    int m = (l + r) >> 1;
    update(id * 2, l, m, pos, nx, ny);
    update(id * 2 + 1, m + 1, r, pos, nx, ny);
    st[id].al = mul(st[id*2].al, st[id*2+1].al);
    ford(i, c - 1, 0){
        st[id].li[i] = 0;
        foru(j, 0, i){
            st[id].li[i] = (st[id].li[i] + mul(st[id * 2].li[j], st[id * 2 + 1].li[i - j])) % mod;
        }
    }
}

void solve(){
    cin >> n >> c;
    foru(i, 1, n){
        cin >> a[i];
    }
    foru(i, 1, n){
        cin >> b[i];
    }
    cin >> q;
    foru(i, 1, n){
        update(1, 1, n, i, a[i] % mod, b[i] % mod);
    }
    while (q--){
        cin >> clsf >> x >> y;
        update(1, 1, n, clsf, x % mod, y % mod);
        sum = 0;
        foru(i, 0, c - 1){
            sum = (sum + st[1].li[i]) % mod;
        }
        cout << (st[1].al - sum + 3 * mod) % mod << "\n";
    }
}

int main(){
    fastIO();
    if (fopen(AC".inp", "r")){
        freopen(AC".inp", "r", stdin);
        freopen(AC".out", "w", stdout);
    }
    solve();
}

Compilation message (stderr)

relativnost.cpp: In function 'int main()':
relativnost.cpp:94:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   94 |         freopen(AC".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
relativnost.cpp:95:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   95 |         freopen(AC".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
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