Submission #749841

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
749841	2023-05-28 17:28:28	keta_tsimakuridze	Cake 3 (JOI19_cake3)	C++14	100 / 100	746 ms	129236 KiB

cake3

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#include<bits/stdc++.h>
#define f first
#define s second
#define int long long
#define pii pair<int,int>
using namespace std;
const int N = 2e5 + 5, mod = 1e9 + 7; // !
int t, val[N],m;
pii a[N];
int ans = -1e18;
vector<int> x;
vector<int> c[4 * N], sum[4 * N];
void build(int u, int l, int r, vector<int> v) {
    if(l == r) return;
    int mid = (l + r) / 2;
    vector<int> vl, vr;
    c[u].resize((int)v.size());
    sum[u].resize((int)v.size());
    for(int i = 0; i < v.size(); i++) {
        if(i) c[u][i] = c[u][i - 1], sum[u][i] = sum[u][i - 1];
        if(v[i] <= mid) vl.push_back(v[i]), ++c[u][i], sum[u][i] += val[v[i]];
        else vr.push_back(v[i]);
    }
    build(2 * u, l, mid, vl);
    build(2 * u + 1, mid + 1, r, vr);
}
int get(int u, int l, int r, int L, int R, int k) {
    if(l == r) return k * val[l];
    int mid = (l + r) / 2;
    if(c[u][R] - (L > 0) * c[u][L - 1] >= k) return get(2 * u, l, mid, (L > 0 ? c[u][L - 1] : 0), c[u][R] - 1, k);
 
 
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Compilation message (stderr)

cake3.cpp: In function 'void build(long long int, long long int, long long int, std::vector<long long int>)':
cake3.cpp:19:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for(int i = 0; i < v.size(); i++) {
      |                    ~~^~~~~~~~~~
cake3.cpp: At global scope:
cake3.cpp:44:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   44 | main(){
      | ^~~~
cake3.cpp: In function 'int main()':
cake3.cpp:56:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |     for(int i = 0; i < x.size(); i++) val[i + 1] = x[i], id[x[i]] = i + 1;
      |                    ~~^~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 19 / 19
• Subtask 3: 76 / 76