Submission #1271865

#	Time	Username	Problem	Language	Result	Execution time	Memory
1271865		baotoan655	Relativnost (COCI15_relativnost)	C++20	140 / 140	1559 ms	13348 KiB

relativnost

#include <bits/stdc++.h>
#define file(name)  if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
using namespace std;
const int MOD = 10007;
const int MAX = 1e5 + 5;
int c;
int sTree[21][MAX << 2];

int add(int x, int y) {
    return x + y >= MOD ? (x + y) - MOD : x + y;
}

int mul(int x, int y) {
    return x * y % MOD;
}

void build(int k, int l, int r, pair<int, int> v[]) {
    if (l == r) {
        sTree[1][k] = v[l].first % MOD;
        sTree[0][k] = v[l].second % MOD;
    }
    else {
        int mid = (l + r) >> 1;
        build(k << 1, l, mid, v);
        build(k << 1 | 1, mid + 1, r, v);
        for (int i = 0; i <= c; ++i) {
            sTree[i][k] = 0;
        }
        for (int i = 0; i <= c; ++i) {
            for (int j = 0; j <= c; ++j) {
                sTree[min(i + j, c)][k] = add(sTree[min(i + j, c)][k], mul(sTree[i][k << 1], sTree[j][k << 1 | 1]));
            }
        }
    }
}
void update(int k, int l, int r, int pos, pair<int, int>& val) {
    if (l == r) {
        sTree[1][k] = val.first % MOD;
        sTree[0][k] = val.second % MOD;
    }
    else {
        int mid = (l + r) >> 1;
        if (pos <= mid) {
            update(k << 1, l, mid, pos, val);
        }
        else {
            update(k << 1 | 1, mid + 1, r, pos, val);
        }
        for (int i = 0; i <= c; ++i) {
            sTree[i][k] = 0;
        }
        for (int i = 0; i <= c; ++i) {
            for (int j = 0; j <= c; ++j) {
                sTree[min(i + j, c)][k] = add(sTree[min(i + j, c)][k], mul(sTree[i][k << 1], sTree[j][k << 1 | 1]));
            }
        }
    }
}
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);

    file("A") else file("relativnost");
    int n;
    cin >> n >> c;
    pair<int, int> v[n + 1];
    for (int i = 1; i <= n; ++i) {
        cin >> v[i].first;
    }
    for (int i = 1; i <= n; ++i) {
        cin >> v[i].second;
    }
    build(1, 1, n, v);
    int q;
    cin >> q;
    while (q--) {
        int indx, f, s;
        cin >> indx >> f >> s;
        pair<int, int>p = { f, s };
        update(1, 1, n, indx, p);
        int res = sTree[c][1];
        cout << res << ' ';
    }
    return 0;
}

Compilation message (stderr)

relativnost.cpp: In function 'int main()':
relativnost.cpp:2:58: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    2 | #define file(name)  if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
      |                                                   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
relativnost.cpp:63:5: note: in expansion of macro 'file'
   63 |     file("A") else file("relativnost");
      |     ^~~~
relativnost.cpp:2:91: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    2 | #define file(name)  if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
      |                                                                                    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
relativnost.cpp:63:5: note: in expansion of macro 'file'
   63 |     file("A") else file("relativnost");
      |     ^~~~
relativnost.cpp:2:58: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    2 | #define file(name)  if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
      |                                                   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
relativnost.cpp:63:20: note: in expansion of macro 'file'
   63 |     file("A") else file("relativnost");
      |                    ^~~~
relativnost.cpp:2:91: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    2 | #define file(name)  if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
      |                                                                                    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
relativnost.cpp:63:20: note: in expansion of macro 'file'
   63 |     file("A") else file("relativnost");
      |                    ^~~~

• Subtask 1: 140 / 140