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#193816#7520. Monster Generatorucup-team1004#WA 0ms3620kbC++143.1kb2023-09-30 17:55:512023-09-30 17:55:51

Judging History

你现在查看的是测评时间为 2023-09-30 17:55:51 的历史记录

  • [2023-11-04 18:36:20]
  • 管理员手动重测本题所有提交记录
  • 测评结果:WA
  • 用时:0ms
  • 内存:3836kb
  • [2023-11-04 17:09:33]
  • 管理员手动重测本题所有提交记录
  • 测评结果:0
  • 用时:0ms
  • 内存:3432kb
  • [2023-09-30 17:55:51]
  • 评测
  • 测评结果:0
  • 用时:0ms
  • 内存:3620kb
  • [2023-09-30 17:55:51]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
using ll=long long;
template<typename T>
ostream& operator << (ostream &out,const vector<T>&x){
	if(x.empty())return out<<"[]";
	out<<'['<<x[0];
	for(int len=x.size(),i=1;i<len;i++)out<<','<<x[i];
	return out<<']';
}
template<typename T>
vector<T> ary(const T *a,int l,int r){
	return vector<T>{a+l,a+1+r};
}
template<typename T>
void debug(T x){
	cerr<<x<<'\n';
}
template<typename T,typename ...S>
void debug(T x,S ...y){
	cerr<<x<<' ',debug(y...);
}
const int N=1e2+10,M=N*N*2;
const ll INF=2e18;
using ull=unsigned long long;
using LL=__int128;
const LL mod=(LL)1<<64;
ostream& operator << (ostream &out,LL x){
	if(x<0)out<<'-',x=-x;
	if(x>9)out<<x/10;
	return out<<char(x%10+48);
}
int n,k;
ll m,a[N],ka[N],b[N],kb[N],c[M];
LL lower(LL x,LL y){
	if(y<0)x=-x,y=-y;
	if(x>=0)return x/y;
	else return (x-y+1)/y;
}
LL upper(LL x,LL y){
	if(y<0)x=-x,y=-y;
	if(x>=0)return (x+y-1)/y;
	else return x/y;
}
ull ans;
int cur[N];
LL A[N],B[N],p[N],q[N];
bool cmp(int x,int y){
	int t1=A[x]<=B[x],t2=A[y]<=B[y];
	if(t1^t2)return t1;
	else if(t1)return A[x]<A[y];
	else return B[x]>B[y];
}
int top,stk[N];
ull sum(ll l,ll r){
	return LL(l+r)*(r-l+1)/2%mod;
}
void solve(ll l,ll r){
	iota(cur,cur+1+n,0);
	for(int i=1;i<=n;i++){
		A[i]=a[i]+(LL)l*ka[i];
		B[i]=b[i]+(LL)l*kb[i];
	};
	sort(cur+1,cur+1+n,cmp);
	LL s1=0,s2=0;
	p[0]=q[0]=0;
	for(int x=1,i;i=cur[x],x<=n;x++){
		q[i]=s1-A[i],p[i]=s2-ka[i];
		s1+=B[i]-A[i],s2+=kb[i]-ka[i];
//		debug(p[i],q[i]);
	}
	iota(cur,cur+1+n,0);
	sort(cur,cur+1+n,[](int x,int y){
		return p[x]^p[y]?p[x]>p[y]:q[x]<q[y];
	});
	auto calc=[&](int i,int j){
		return lower(q[j]-q[i],p[i]-p[j]);
	};
	top=0;
	for(int x=0,i;i=cur[x],x<=n;x++){
		if(top&&p[i]==p[stk[top]])continue;
		for(;top>1&&calc(stk[top-1],stk[top])>=calc(stk[top],i);top--);
		stk[++top]=i;
	}
//	for(int i=1;i<=top;i++)debug(p[stk[i]],q[stk[i]]);
	ll las=-1,lim=r-l;
//	debug(l,r,ary(p,0,n),ary(q,0,n));
	for(int i=1;i<=top;i++){
		if(las>=lim)continue;
		ll r=i<top?calc(stk[i],stk[i+1]):INF;
		r=min(r,lim);
		ll l=max(las+1,0ll);
		if(l<=r){
			int x=stk[i];
//			debug(l,r,::calc(l,r),p[x]%mod,q[x]%mod,ans);
			ans-=sum(l,r)*ull(p[x]%mod);
			ans-=ull((r-l+1)%mod)*ull(q[x]%mod);
		}
		las=r;
	}
//	debug(r,ans);
}
int main(){
	cin>>n>>m;
	for(int i=1;i<=n;i++)cin>>a[i]>>ka[i]>>b[i]>>kb[i];
	c[++k]=0;
	for(int i=1;i<=n;i++){
		if(a[i]<=b[i]&&ka[i]<kb[i]){
			c[++k]=upper(b[i]-a[i]+1,kb[i]-ka[i]);
		}else if(a[i]>b[i]&&ka[i]>kb[i]){
			c[++k]=upper(a[i]-b[i],ka[i]-kb[i]);
		}
	}
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++){
			if(i==j)continue;
			if(a[i]<a[j]&&ka[i]>ka[j]){
				c[++k]=upper(a[j]-a[i],ka[i]-ka[j]);
			}else if(a[i]>a[j]&&ka[i]<ka[j]){
				c[++k]=upper(a[i]-a[j],ka[j]-ka[i]);
			}
			if(b[i]<b[j]&&kb[i]>kb[j]){
				c[++k]=upper(b[j]-b[i],kb[i]-kb[j]);
			}else if(b[i]>b[j]&&kb[i]<kb[j]){
				c[++k]=upper(b[i]-b[j],kb[j]-kb[i]);
			}
		}
	}
	sort(c+1,c+1+k);
	for(;k&&c[k]>m;k--);
	k=unique(c+1,c+1+k)-c-1;
	c[k+1]=m+1;
	for(int i=1;i<=k;i++){
		solve(c[i],c[i+1]-1);
	}
	cout<<ans<<endl;
	return 0;
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3540kb

input:

3 5
3 1 5 2
4 2 1 3
1 9 100 1

output:

113

result:

ok single line: '113'

Test #2:

score: 0
Accepted
time: 0ms
memory: 3620kb

input:

3 100000000
3 1 5 2
4 2 1 3
1 9 100 1

output:

35000000549999998

result:

ok single line: '35000000549999998'

Test #3:

score: -100
Wrong Answer
time: 0ms
memory: 3568kb

input:

10 1000000000000000000
776874380544333 197 471391764744275 33
159838820333814 107 677112662750393 41
962335658276824 48 255593531071176 11
127404116579775 209 268525254990127 34
647620110614714 76 897947476313307 13
146196843402516 221 772928712898807 39
637929916804442 2 716937021892338 15
64200226...

output:

8596169764396037558

result:

wrong answer 1st lines differ - expected: '17883317185357051350', found: '8596169764396037558'