Submission #680558

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
680558	2023-01-11 07:39:47	Cross_Ratio	Martian DNA (BOI18_dna)	C++14	100 / 100	296 ms	24260 KiB

dna

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#include <bits/stdc++.h>
using namespace std;
struct SegTree {
    vector<int> seg;
    int MAX;
    SegTree(int N) {
        int i;
        for(i=1;i<2*N;i*=2) {}
        seg.resize(i);
        MAX = i;
        for(i=MAX/2;i<MAX;i++) seg[i] = i - MAX/2;
    }
    void cons() {
        for(int i = MAX/2-1;i>=1;i--) {
            seg[i] = min(seg[2*i], seg[2*i+1]);
        }
    }
    void prop(int n, int ns, int ne) {
        if(n<MAX/2) {
            seg[2*n] = max(seg[2*n], seg[n]);
            seg[2*n+1] = max(seg[2*n+1], seg[n]);
        }
    }
    void add(int s, int e, int n, int ns, int ne) {
        prop(n,ns,ne);
        if(e<=ns||ne<=s) return;
        if(s<=ns&&ne<=e) {
            seg[n] = 1e9;
            prop(n,ns,ne);
            return;
 
 
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Compilation message (stderr)

dna.cpp: In member function 'void SegTree::add(int, int, int, int, int)':
dna.cpp:32:22: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   32 |         int mid = ns + ne >> 1;
      |                   ~~~^~~~
dna.cpp: In member function 'int SegTree::sum(int, int, int, int, int)':
dna.cpp:41:22: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   41 |         int mid = ns + ne >> 1;
      |                   ~~~^~~~
dna.cpp: In function 'int main()':
dna.cpp:61:24: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   61 |         if(V[B].size() < Q) {
      |            ~~~~~~~~~~~~^~~

• Subtask 1: 16 / 16
• Subtask 2: 24 / 24
• Subtask 3: 28 / 28
• Subtask 4: 32 / 32