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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 |
---|---|---|---|---|---|---|---|---|---|
#425528 | #6355. 5 | ushg8877 | WA | 3ms | 13984kb | C++14 | 1.5kb | 2024-05-30 12:53:41 | 2024-05-30 12:53:41 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#define vi vector<array<int,2> >
#define ll long long
const int MAXN=2e5+5;
int n,s,cnt[MAXN];
vi vec[MAXN<<1];
vi operator +(vi a,int x){
vi b;
for(auto i:a) b.push_back({i[0]+x,i[1]+x});
return b;
}
void merge(vi &b,vi a){
if(b.empty()) {swap(a,b);return;}
vi c;
for(auto i:b) a.push_back(i);
sort(a.begin(),a.end());
for(int i=0,j;i<(int)a.size();i++){
int l=a[i][0],r=a[i][1];
j=i;
while(j+1<(int)a.size()&&a[j+1][0]<=r+1){
j++;
r=max(r,a[j][1]);
}
i=j;
c.push_back({l,r});
}
swap(c,b);c.clear();
return;
}
int main(){
ios::sync_with_stdio(false);
// freopen("Otomachi_Una.in","r",stdin);
// freopen("Otomachi_Una.out","w",stdout);
cin>>n>>s;
for(int i=1;i<=n;i++){
int x;cin>>x;
cnt[x]++;
}
vec[MAXN].push_back({0,0});
int l=0,r=0;
for(int i=0;i<=s;i++) if(cnt[i]){
auto upd=[&](int x){
if(i==0){
l-=x;
for(int k=l;k<=r;k++){
int t=k+(i-1)*x;
if(-s<=t&&t<=s) if(!vec[k+MAXN].empty()) merge(vec[t+MAXN],vec[k+MAXN]+x);
}
}else{
r+=x;
for(int k=r;k>=l;k--){
int t=k+(i-1)*x;
if(-s<=t&&t<=s) if(!vec[k+MAXN].empty()) merge(vec[t+MAXN],vec[k+MAXN]+x);
}
}
};
for(int j=0;j<20;j++) if(cnt[i]>=(1<<j)){
cnt[i]-=(1<<j);
upd(1<<j);
}
if(cnt[i]) upd(cnt[i]);
}
ll ans=0;
for(int i=-n;i<=s;i++) for(auto j:vec[i+MAXN]) ans+=j[1]-j[0]+1;
cout<<ans<<'\n';
cerr<<"Running Time: "<<1.0*clock()/CLOCKS_PER_SEC<<'\n';
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 13984kb
input:
7 9 0 0 0 1 1 2 5
output:
42
result:
ok 1 number(s): "42"
Test #2:
score: -100
Wrong Answer
time: 3ms
memory: 13888kb
input:
10 33 9 9 8 1 1 1 1 1 1 1
output:
40
result:
wrong answer 1st numbers differ - expected: '48', found: '40'