Submission #920046

#TimeUsernameProblemLanguageResultExecution timeMemory
920046TINRelativnost (COCI15_relativnost)C++17
0 / 140
2495 ms53768 KiB
#include <bits/stdc++.h> using namespace std; #define FNAME "test" typedef long long ll; const ll M = 10007; const int N = 1e5 + 5; const int C = 21; int n, c, q; ll a[N], b[N]; struct Node { ll chosen[C]; Node() { for (int i = 0; i < C; i++) chosen[i] = 0; } } ST[3 * N]; Node merge(const Node& Node1, const Node& Node2) { Node nNode; for (int i = 0; i <= c; i++) { for (int j = 0; j <= c; j++) { nNode.chosen[min(c, i + j)] = (nNode.chosen[min(c, i + j)] + Node1.chosen[i] * Node2.chosen[j]) % M; } } return nNode; } void Task() { ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); cout << fixed << setprecision(9); if (fopen(FNAME".inp","r")) { freopen(FNAME".inp","r",stdin); freopen(FNAME".out","w",stdout); } } void build(int id, int l, int r) { if (l == r) { ST[id].chosen[0] = b[l] % M; ST[id].chosen[1] = a[r] % M; return; } int m = (l + r) / 2; build(id * 2, l, m); build(id * 2 + 1, m + 1, r); ST[id] = merge(ST[id * 2], ST[id * 2 + 1]); } void update(int id, int l, int r, int pos, ll vala, ll valb) { if (pos < l || r < pos) return; if (l == r) { a[pos] = vala; ST[id].chosen[1] = a[pos] % M; b[pos] = valb; ST[id].chosen[0] = b[pos] % M; return; } int m = (l + r) / 2; if (pos <= m) update(id * 2, l, m, pos, vala, valb); else update(id * 2 + 1, m + 1, r, pos, vala, valb); ST[id] = merge(ST[id * 2], ST[id * 2 + 1]); } void Solve() { //Your Code cin >> n >> c; for (int i = 1; i <= n; i++) cin >> a[i] >> b[i]; build(1, 1, n); cin >> q; while (q--) { int pos; ll vala, valb; cin >> pos >> vala >> valb; update(1, 1, n, pos, vala, valb); cout << ST[1].chosen[c] << '\n'; } } signed main() { Task(); Solve(); cerr << "\nTime run: " << 1000*clock()/CLOCKS_PER_SEC << "ms"; return 37^37; }

Compilation message (stderr)

relativnost.cpp: In function 'void Task()':
relativnost.cpp:39:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |   freopen(FNAME".inp","r",stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
relativnost.cpp:40:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |   freopen(FNAME".out","w",stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
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