Submission #1671117


Source Code Expand

#include<bits/stdc++.h>
typedef long long i64;
int n,k;
i64 sa=0;
void mins(i64&a,i64 b){if(a>b)a=b;}
struct node{
	node*lc,*rc;
	int D,sz,rnd;
	i64 vl,vr;
	void sp(node*&,node*&,int);
	i64 gl(){return lc?lc->gl():vl;}
	i64 gmn(){
		i64 mn=vr;
		if(lc)mins(mn,lc->gmn());
		if(rc)mins(mn,rc->gmn());
		return mn;
	}
}ns[1000007],*np=ns,*rt,*p1,*p2,*p3,*p4;
node*mg(node*a,node*b){
	if(!a)return b;
	if(!b)return a;
	if(a->rnd>b->rnd){
		a->sz+=b->sz;
		a->rc=mg(a->rc,b);
		return a;
	}
	b->sz+=a->sz;
	b->lc=mg(a,b->lc);
	return b;
}
void node::sp(node*&l,node*&r,int k){
	if(!this){l=r=0;return;}
	int ls=lc?lc->sz:0;
	if(k<=ls)return r=this,sz-=k,lc->sp(l,lc,k);
	if(k>=ls+D)return l=this,sz=k,rc->sp(rc,r,k-ls-D);
	k-=ls;
	node*a=np++,*b=np++;
	*a=(node){0,0,k,k,rand(),vl,vl};
	*b=(node){0,0,D-k,D-k,rand(),vr,vr};
	if(vl>vr){
		a->vr=vl-k+1;
		b->vl=vl-k;
	}
	l=mg(lc,a);
	r=mg(b,rc);
}
int main(){
	scanf("%d%d",&n,&k);
	srand(n+k);
	*(rt=np++)=(node){0,0,k,k,rand(),0,0};
	for(int i=1,a,b;i<=n;++i){
		scanf("%d%d",&a,&b);
		sa+=a;
		if(b==1){
			if(a*2>k)return puts("-1"),0;
			rt->sp(p1,p2,1);
			p2->sp(p2,p3,a*2-1);
			p3=mg(p3,p1);
			int D=a*2-1;
			i64 y=p3->gl();
			*(p4=np++)=(node){0,0,D,D,rand(),y+D,y+1};
			rt=mg(p3,p4);
		}else{
			rt->sp(p1,p2,a*2%k);
			rt=mg(p2,p1);
		}
	}
	printf("%lld\n",sa*2+rt->gmn());
	return 0;
}

Submission Info

Submission Time
Task F - Train Service Planning
User ccz181078
Language C++14 (GCC 5.4.1)
Score 1700
Code Size 1416 Byte
Status AC
Exec Time 67 ms
Memory 24832 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:48:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&k);
                     ^
./Main.cpp:52:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&a,&b);
                      ^

Judge Result

Set Name Sample All subtask subtask2
Score / Max Score 0 / 0 700 / 700 500 / 500 500 / 500
Status
AC × 4
AC × 104
AC × 37
AC × 28
Set Name Test Cases
Sample sample1.txt, sample2.txt, sample3.txt, sample4.txt
All sample1.txt, sample2.txt, sample3.txt, sample4.txt, in1.txt, in10.txt, in101.txt, in102.txt, in103.txt, in104.txt, in105.txt, in106.txt, in107.txt, in108.txt, in109.txt, in11.txt, in110.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in2.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in3.txt, in4.txt, in5.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt, sample3.txt, sample4.txt, sub2in1.txt, sub2in10.txt, sub2in11.txt, sub2in12.txt, sub2in13.txt, sub2in14.txt, sub2in15.txt, sub2in16.txt, sub2in17.txt, sub2in18.txt, sub2in19.txt, sub2in2.txt, sub2in20.txt, sub2in21.txt, sub2in22.txt, sub2in23.txt, sub2in24.txt, sub2in3.txt, sub2in4.txt, sub2in5.txt, sub2in6.txt, sub2in7.txt, sub2in8.txt, sub2in9.txt, subin1.txt, subin10.txt, subin101.txt, subin102.txt, subin103.txt, subin104.txt, subin105.txt, subin106.txt, subin107.txt, subin108.txt, subin109.txt, subin11.txt, subin12.txt, subin13.txt, subin14.txt, subin15.txt, subin16.txt, subin17.txt, subin18.txt, subin19.txt, subin2.txt, subin20.txt, subin201.txt, subin21.txt, subin22.txt, subin23.txt, subin24.txt, subin3.txt, subin4.txt, subin5.txt, subin6.txt, subin7.txt, subin8.txt, subin9.txt
subtask sample1.txt, sample2.txt, sample3.txt, subin1.txt, subin10.txt, subin101.txt, subin102.txt, subin103.txt, subin104.txt, subin105.txt, subin106.txt, subin107.txt, subin108.txt, subin109.txt, subin11.txt, subin12.txt, subin13.txt, subin14.txt, subin15.txt, subin16.txt, subin17.txt, subin18.txt, subin19.txt, subin2.txt, subin20.txt, subin201.txt, subin21.txt, subin22.txt, subin23.txt, subin24.txt, subin3.txt, subin4.txt, subin5.txt, subin6.txt, subin7.txt, subin8.txt, subin9.txt
subtask2 sample1.txt, sample2.txt, sample3.txt, sample4.txt, sub2in1.txt, sub2in10.txt, sub2in11.txt, sub2in12.txt, sub2in13.txt, sub2in14.txt, sub2in15.txt, sub2in16.txt, sub2in17.txt, sub2in18.txt, sub2in19.txt, sub2in2.txt, sub2in20.txt, sub2in21.txt, sub2in22.txt, sub2in23.txt, sub2in24.txt, sub2in3.txt, sub2in4.txt, sub2in5.txt, sub2in6.txt, sub2in7.txt, sub2in8.txt, sub2in9.txt
Case Name Status Exec Time Memory
in1.txt AC 2 ms 384 KB
in10.txt AC 35 ms 18688 KB
in101.txt AC 37 ms 16640 KB
in102.txt AC 36 ms 16640 KB
in103.txt AC 37 ms 16640 KB
in104.txt AC 37 ms 16640 KB
in105.txt AC 40 ms 18688 KB
in106.txt AC 36 ms 16640 KB
in107.txt AC 38 ms 16640 KB
in108.txt AC 36 ms 16640 KB
in109.txt AC 38 ms 18688 KB
in11.txt AC 36 ms 18688 KB
in110.txt AC 41 ms 18688 KB
in12.txt AC 38 ms 18688 KB
in13.txt AC 36 ms 18688 KB
in14.txt AC 38 ms 18688 KB
in15.txt AC 39 ms 18688 KB
in16.txt AC 39 ms 18688 KB
in17.txt AC 39 ms 18688 KB
in18.txt AC 38 ms 18688 KB
in19.txt AC 37 ms 18688 KB
in2.txt AC 35 ms 18688 KB
in20.txt AC 37 ms 18688 KB
in21.txt AC 67 ms 18688 KB
in22.txt AC 63 ms 18688 KB
in23.txt AC 66 ms 18688 KB
in24.txt AC 63 ms 18688 KB
in25.txt AC 31 ms 10496 KB
in26.txt AC 31 ms 10496 KB
in27.txt AC 31 ms 8448 KB
in28.txt AC 32 ms 12544 KB
in3.txt AC 35 ms 18688 KB
in4.txt AC 36 ms 18688 KB
in5.txt AC 30 ms 14592 KB
in6.txt AC 39 ms 18688 KB
in7.txt AC 34 ms 16640 KB
in8.txt AC 21 ms 10496 KB
in9.txt AC 35 ms 18688 KB
sample1.txt AC 1 ms 256 KB
sample2.txt AC 1 ms 256 KB
sample3.txt AC 1 ms 256 KB
sample4.txt AC 1 ms 256 KB
sub2in1.txt AC 1 ms 256 KB
sub2in10.txt AC 1 ms 256 KB
sub2in11.txt AC 1 ms 256 KB
sub2in12.txt AC 1 ms 256 KB
sub2in13.txt AC 1 ms 256 KB
sub2in14.txt AC 1 ms 256 KB
sub2in15.txt AC 1 ms 256 KB
sub2in16.txt AC 1 ms 256 KB
sub2in17.txt AC 1 ms 256 KB
sub2in18.txt AC 1 ms 256 KB
sub2in19.txt AC 1 ms 256 KB
sub2in2.txt AC 1 ms 256 KB
sub2in20.txt AC 1 ms 256 KB
sub2in21.txt AC 1 ms 256 KB
sub2in22.txt AC 1 ms 256 KB
sub2in23.txt AC 1 ms 256 KB
sub2in24.txt AC 1 ms 256 KB
sub2in3.txt AC 1 ms 256 KB
sub2in4.txt AC 1 ms 256 KB
sub2in5.txt AC 1 ms 256 KB
sub2in6.txt AC 1 ms 256 KB
sub2in7.txt AC 1 ms 256 KB
sub2in8.txt AC 1 ms 256 KB
sub2in9.txt AC 1 ms 256 KB
subin1.txt AC 38 ms 24832 KB
subin10.txt AC 41 ms 24832 KB
subin101.txt AC 37 ms 24832 KB
subin102.txt AC 39 ms 24832 KB
subin103.txt AC 39 ms 24832 KB
subin104.txt AC 41 ms 24832 KB
subin105.txt AC 42 ms 24832 KB
subin106.txt AC 46 ms 24832 KB
subin107.txt AC 41 ms 24832 KB
subin108.txt AC 38 ms 24832 KB
subin109.txt AC 39 ms 24832 KB
subin11.txt AC 44 ms 24832 KB
subin12.txt AC 43 ms 24832 KB
subin13.txt AC 43 ms 24832 KB
subin14.txt AC 42 ms 24832 KB
subin15.txt AC 42 ms 24832 KB
subin16.txt AC 41 ms 24832 KB
subin17.txt AC 42 ms 24832 KB
subin18.txt AC 42 ms 24832 KB
subin19.txt AC 41 ms 24832 KB
subin2.txt AC 36 ms 24832 KB
subin20.txt AC 40 ms 24832 KB
subin201.txt AC 1 ms 256 KB
subin21.txt AC 33 ms 18688 KB
subin22.txt AC 34 ms 18688 KB
subin23.txt AC 34 ms 20736 KB
subin24.txt AC 33 ms 20736 KB
subin3.txt AC 38 ms 24832 KB
subin4.txt AC 32 ms 20736 KB
subin5.txt AC 43 ms 24832 KB
subin6.txt AC 48 ms 24832 KB
subin7.txt AC 37 ms 24832 KB
subin8.txt AC 27 ms 18688 KB
subin9.txt AC 38 ms 24832 KB