제출 #602769

#제출 시각아이디문제언어결과실행 시간메모리
602769Siffer사탕 분배 (IOI21_candies)C++17
8 / 100
128 ms15444 KiB
#include "candies.h"
#include<bits/stdc++.h>
using namespace std;

typedef long long ll;

vector<ll> s;

ll gett(int i) {
    i += s.size()>>1;
    ll r = 0;
    for(;i;i>>=1) r += s[i];
    return r;
}

void up(int a, int b, ll v) {
    a += s.size()>>1; b += s.size()>>1;
    for(;a <= b; a >>= 1, b >>= 1) {
        if(a&1) s[a] += v, a++;
        if((b&1)==0) s[b] += v, b--;
    }
}

vector<int> distribute_candies(vector<int> c, vector<int> l, vector<int> r, vector<int> v) {
    int n = c.size();
    int p = 1; for(;p <= n; p <<= 1); p <<= 1;
    s.resize(p,0);
    for(int i = 0; i < l.size(); i++) up(l[i],r[i],v[i]);
    vector<int> k(n,0);
    for(int i = 0; i < n; i++) k[i] = min(gett(i), c[i]+0ll);
    return k;
}

컴파일 시 표준 에러 (stderr) 메시지

candies.cpp: In function 'std::vector<int> distribute_candies(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
candies.cpp:28:22: 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 = 0; i < l.size(); i++) up(l[i],r[i],v[i]);
      |                    ~~^~~~~~~~~~
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