제출 #956260

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
956260	2024-04-01 12:26:11	_callmelucian	Examination (JOI19_examination)	C++14	100 / 100	351 ms	12280 KiB

examination

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pl;
typedef pair<int,int> pii;
typedef tuple<int,int,int> tt;
#define all(a) a.begin(), a.end()
#define filter(a) a.erase(unique(all(a)), a.end())
const int mn = 1e5 + 5;
const int srt = 316;
struct strct {
    vector<int> vec, sum;
    strct (int sz) : vec(sz + 1), sum(sz / srt + 1) {}
    void update (int pos, int val) {
        vec[pos] += val;
        sum[pos / srt] += val;
    }
    int query (int k) {
        int nxt = k / srt + 1, ans = 0;
        for (int i = k; i < srt * nxt; i++) ans += vec[i];
        for (int i = nxt; i < sum.size(); i++) ans += sum[i];
        return ans;
    }
 
 
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컴파일 시 표준 에러 (stderr) 메시지

examination.cpp: In member function 'int strct::query(int)':
examination.cpp:28:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |         for (int i = nxt; i < sum.size(); i++) ans += sum[i];
      |                           ~~^~~~~~~~~~~~

• Subtask 1: 2 / 2
• Subtask 2: 20 / 20
• Subtask 3: 21 / 21
• Subtask 4: 57 / 57