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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#211755 | #7520. Monster Generator | zhouhuanyi | WA | 0ms | 3784kb | C++14 | 2.9kb | 2023-10-12 20:57:28 | 2023-11-04 18:37:25 |
Judging History
你现在查看的是最新测评结果
- [2023-11-04 16:34:13]
- hack成功,自动添加数据
- (//qoj.ac/hack/422)
- [2023-11-04 16:28:16]
- hack成功,自动添加数据
- (//qoj.ac/hack/420)
- [2023-10-12 20:57:28]
- 提交
answer
#include<iostream>
#include<cstdio>
#include<algorithm>
#include<cmath>
#define N 200
using namespace std;
const long long inf=(long long)(1e18);
long long read()
{
char c=0;
long long sum=0;
while (c<'0'||c>'9') c=getchar();
while ('0'<=c&&c<='9') sum=sum*10+c-'0',c=getchar();
return sum;
}
int sgn(__int128 x)
{
if (x>0) return 1;
else if (x==0) return 0;
else return -1;
}
struct reads
{
long long a,ta,b,tb;
__int128 ra,rb;
int num;
bool operator < (const reads &t)const
{
if (sgn(rb-ra)!=sgn(t.rb-t.ra)) return sgn(rb-ra)!=sgn(t.rb-t.ra)?sgn(rb-ra)>sgn(t.rb-t.ra):num<t.num;
else if (rb-ra>=0) return ra!=t.ra?ra<t.ra:num<t.num;
else return rb!=t.rb?rb>t.rb:num<t.num;
}
};
reads st[N+1];
struct points
{
long long x,y;
bool operator < (const points &t)const
{
return x!=t.x?x<t.x:y<t.y;
}
};
points tongs[N+1],dque[N+1];
points operator + (points a,points b)
{
return (points){a.x+b.x,a.y+b.y};
}
points operator - (points a,points b)
{
return (points){a.x-b.x,a.y-b.y};
}
int n,length,lengths,top;
long long m;
unsigned long long ans;
__int128 operator * (points a,points b)
{
return (__int128)(a.x)*b.y-(__int128)(a.y)*b.x;
}
bool check(points a,points b,points c)
{
return (b-a)*(c-a)>=0;
}
unsigned long long F(long long x)
{
if (x<0) return 0;
return (unsigned long long)((__int128)(x)*(x+1)>>1);
}
void calc(long long x)
{
for (int i=1;i<=n;++i) st[i].ra=st[i].a+(__int128)(st[i].ta)*x,st[i].rb=st[i].b+(__int128)(st[i].tb)*x;
sort(st+1,st+n+1);
return;
}
bool check(long long x)
{
for (int i=1;i<=n;++i) st[i].ra=st[i].a+(__int128)(st[i].ta)*x,st[i].rb=st[i].b+(__int128)(st[i].tb)*x;
for (int i=1;i<=n-1;++i)
if (st[i+1]<st[i])
return 0;
return 1;
}
void solve(long long l,long long r)
{
long long res=0,res2=0,sl,sr;
lengths=top=0;
for (int i=1;i<=n;++i) tongs[++lengths]=(points){res2+st[i].ta,res+st[i].a},res+=st[i].a-st[i].b,res2+=st[i].ta-st[i].tb;
sort(tongs+1,tongs+lengths+1);
for (int i=1;i<=lengths;++i)
{
while (top>=2&&check(dque[top-1],dque[top],tongs[i])) top--;
dque[++top]=tongs[i];
}
for (int i=1;i<=top;++i)
{
sl=l,sr=r;
if (i>=2&&dque[i].x!=dque[i-1].x) sl=max(sl,(dque[i-1].y-dque[i].y+dque[i].x-dque[i-1].x-1)/(dque[i].x-dque[i-1].x)+1);
if (i+1<=top)
{
if (dque[i].x==dque[i+1].x) sr=l-1;
else sr=min(sr,(dque[i].y-dque[i+1].y)/(dque[i+1].x-dque[i].x));
}
if (sl<=sr) ans+=(unsigned long long)(dque[i].x)*(F(sr)-F(sl-1))+(unsigned long long)(dque[i].y)*(unsigned long long)(sr-sl+1);
}
return;
}
int main()
{
long long t,lst;
n=read(),m=read();
for (int i=1;i<=n;++i) st[i].a=read(),st[i].ta=read(),st[i].b=read(),st[i].tb=read(),st[i].num=i;
sort(st+1,st+n+1),t=0;
while (t<=m)
{
lst=t,calc(t);
for (int i=log(inf)/log(2);i>=0;--i)
if (lst+(1ll<<i)<=m&&check(lst+(1ll<<i)))
lst+=(1ll<<i);
solve(t,lst),t=lst+1;
}
printf("%llu\n",ans);
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 0
Wrong Answer
time: 0ms
memory: 3784kb
input:
3 5 3 1 5 2 4 2 1 3 1 9 100 1
output:
106
result:
wrong answer 1st lines differ - expected: '113', found: '106'