Submission #142543

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
142543	2019-08-09 13:36:49	imeimi2000	Street Lamps (APIO19_street_lamps)	C++17	100 / 100	4153 ms	122732 KiB

street_lamps

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#include <iostream>
#include <algorithm>
#include <vector>
#include <set>
 
using namespace std;
typedef long long llong;
typedef pair<int, int> pii;
 
void initv(vector<int> &v) {
    sort(v.begin(), v.end());
    v.erase(unique(v.begin(), v.end()), v.end());
}
 
struct fen1D {
    vector<llong> fen;
    vector<int> cp;
    void add(int x) {
        cp.push_back(x);
    }
    void init() {
        initv(cp);
        fen.resize(cp.size(), 0);
    }
    int find(int x) const {
        return lower_bound(cp.begin(), cp.end(), x) - cp.begin() + 1;
    }
    void update(int i, llong x) {
        i = find(i);
        while (i <= cp.size()) {
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

street_lamps.cpp: In member function 'void fen1D::update(int, llong)':
street_lamps.cpp:30:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         while (i <= cp.size()) {
                ~~^~~~~~~~~~~~
street_lamps.cpp: In member function 'void fen2D::update(int, int, llong)':
street_lamps.cpp:71:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         while (i <= cp.size()) {
                ~~^~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20