Submission #696877

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
696877	2023-02-07 14:14:18	puppy	Fish (IOI08_fish)	C++17	100 / 100	551 ms	65536 KiB

fish

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#include <bits/stdc++.h>
#define int long long
using namespace std;
int F, K, M;
pair<int, int> fish[500005]; //(length, color)
struct mulseg
{
    vector<int> tree;
    mulseg(int n)
    {
        int sz = 1 << ((int)ceil(log2(n+1))+1);
        tree.resize(sz);
    }
    int init(int s, int e, int node, vector<int> &arr)
    {
        if (s == e) return tree[node] = arr[s] % M;
        return tree[node] = init(s, (s+e)/2, 2*node, arr) * init((s+e)/2+1, e, 2*node+1, arr) % M;
    }
    void upd(int s, int e, int node, int id, int diff)
    {
        if (e < id || id < s) return;
        if (s == e) {
            tree[node] = (tree[node] + diff + M) % M;
            return;
        }
        upd(s, (s+e)/2, 2*node, id, diff);
        upd((s+e)/2+1, e, 2*node+1, id, diff);
        tree[node] = tree[2*node] * tree[2*node+1] % M;
    }
    int query(int s, int e, int node, int l, int r)
 
 
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Compilation message (stderr)

fish.cpp: In function 'int main()':
fish.cpp:84:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   84 |             int m = l + r >> 1;
      |                     ~~^~~

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