이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include "teams.h"
#include <bits/stdc++.h>
using namespace std;
#define f first
#define s second
typedef long long ll;
typedef pair<int,int> pi;
const int large = 5e5+5;
vector<pi> bit[large]; //r, val
void binit(){
for(int i = 1; i < large; i++)
bit[i].push_back({-large,0});
}
void add(int pos, int r){
for(; pos < large; pos += pos&-pos)
bit[pos].push_back({r,bit[pos].back().s+1});
}
int sum(int pos, int fr){
int ans = 0;
for(; pos > 0; pos -= pos&-pos){
int l = 0, r = bit[pos].size();
while(r-l > 1){
int mid = (l+r)>>1;
if(bit[pos][mid].f <= fr)
l = mid;
else r = mid;
}
ans += bit[pos][l].s;
}
return ans;
}
int sum(int l1, int l2, int r1, int r2){ //finds from (l1, l2], (r1, r2]
return sum(l2,r2)-sum(l1,r2)-sum(l2,r1)+sum(l1, r1);
}
int n;
vector<int> a, b;
void init(int _n, int _a[], int _b[]){
//input stuff
n = _n; //a = _a; b = _b;
for(int i = 0; i < n; i++){
a.push_back(_a[i]);
b.push_back(_b[i]);
}
//process information
binit();
vector<pi> ranges(n); //r,l
for(int i = 0; i < n; i++){
ranges[i] = {b[i],a[i]};
}
sort(ranges.begin(), ranges.end());
for(auto &p: ranges){
add(p.s,p.f);
}
}
int can(int m, int k[]){
//fix input
// vector<int> k2 = k;
vector<int> k2;
for(int i = 0; i < m; i++) k2.push_back(k[i]);
k2.push_back(0); k2.push_back(n+1);
sort(k2.begin(), k2.end(), greater<int>());
int carry = 0;
bool good = 1;
for(int i = 1; i <= m; i++){
int nrem = k2[i];
int sp = sum(k2[i+1], k2[i], k2[i]-1, k2[i-1]-1);
nrem -= sp; nrem = max(nrem, 0);
int tleft = sum(0, k2[i], k2[i]-1, n+1);
carry += nrem;
if(tleft < carry){
good = 0; break;
}
carry -= sum(k2[i+1], k2[i], k2[i]-1, n+1);
carry = max(0, carry);
}
if(!good) return 0;
return 1;
}
//int main()
//{
// ios_base::sync_with_stdio(0); cin.tie(0);
// int _n; vector<int> _a,_b;
// cin >> _n; _a.resize(_n); _b.resize(_n);
// for(int i = 0; i < _n; i++) cin >> _a[i] >> _b[i];
// init(_n,_a,_b);
// int q; cin >> q;
//
// for(int i = 0; i < q; i++){
// int m; cin >> m;
// vector<int> k(m);
// for(int j = 0; j < m; j++) cin >> k[j];
// cout << can(m,k) << "\n";
// }
// return 0;
//}
컴파일 시 표준 에러 (stderr) 메시지
teams.cpp: In function 'int sum(int, int)':
teams.cpp:30:37: warning: conversion from 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
30 | int l = 0, r = bit[pos].size();
| ~~~~~~~~~~~~~^~
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