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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#298107 | #4636. Optimal Assortment | defyers# | WA | 240ms | 21416kb | C++17 | 1.9kb | 2024-01-05 17:46:55 | 2024-01-05 17:46:56 |
Judging History
answer
#include "bits/stdc++.h"
#pragma GCC optimize("Ofast")
#pragma GCC targetr("avx2")
using namespace std;
using ll = long long;
using pii = pair<int, int>;
const int N = 2e5 + 11;
const int V = 1e6 + 11;
int v[N], l[N], r[N];
#define int long long
struct node{
int w, s;
};
int n, m;
struct BIT{
int bit[V], sum = 0;
void add(int p, int v){ sum += v; for(int i = p; i < V; i += i & -i) bit[i] += v; }
int qry(int p){ int ret = 0; for(int i = p; i; i -= i & -i) ret += bit[i]; return ret; }
} bit0, bit1;
void add(int profit, int quantity){
bit0.add(profit, quantity);
bit1.add(profit, quantity * profit);
}
void query(){
int p = 0;
int P = 0, Q = 1;
for(int j = 19; j >= 0; j--){
if(p + (1 << j) < V){
int s0 = bit0.sum - bit0.qry(p + (1 << j) - 1);
int s1 = bit1.sum - bit1.qry(p + (1 << j) - 1);
// cout << s1 << ' ' << (s0 + r[0]) << ' ' << p + (1 << j) << '\n';
if(s1 != 0 && s1 >= (s0 + r[0]) * (p + (1 << j))){
p += (1 << j);
P = s1; Q = s0 + r[0];
}
}
}
int g = gcd(P, Q);
P /= g; Q /= g;
cout << P << '/' << Q << '\n';
}
void solve(int TC) {
cin >> n >> m;
for(int i = 1; i <= n; i++){
cin >> v[i];
}
for(int i = 0; i <= n; i++){
cin >> l[i];
}
for(int i = 0; i <= n; i++){
cin >> r[i];
}
for(int i = 1; i <= n; i++){
add(v[i], l[i]);
}
query();
for(int i = 0; i < m; i++){
int t; cin >> t;
if(t == 1){
int x, y, z; cin >> x >> y >> z;
if(v[x] != 0) add(v[x], -l[x]);
l[x] = y, r[x] = z;
if(v[x] != 0) add(v[x], l[x]);
}else{
int x, y; cin >> x >> y;
assert(x >= 1);
add(v[x], -l[x]);
v[x] = y;
add(v[x], l[x]);
}
query();
}
}
int32_t main() {
cin.tie(0)->sync_with_stdio(0);
cout << fixed << setprecision(10);
int t = 1;
// cin >> t;
for (int i = 1; i <= t; i++) {
solve(i);
}
}
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 3544kb
input:
2 5 4 2 4 3 2 4 3 2 2 1 2 1 1 2 3 1 0 0 0 1 1 0 0 1 2 0 0
output:
16/9 10/9 1/1 2/1 2/1 0/1
result:
ok 6 lines
Test #2:
score: -100
Wrong Answer
time: 240ms
memory: 21416kb
input:
200000 200000 959139 199252 470888 74578 802746 396295 386884 721198 628655 722503 207868 647942 87506 792718 761498 917727 843338 908043 952768 268783 375312 414369 319712 96230 277106 168102 263554 936674 246545 667941 198849 268921 191459 436316 134606 802932 515506 837311 465964 394766 17626 650...
output:
311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 31156721136105...
result:
wrong answer 142nd lines differ - expected: '312363185627235/313871594', found: '312387878380763/313896406'