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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#78531 | #5278. Mex and Cards | Yanagi_Origami | WA | 2ms | 3820kb | C++14 | 2.9kb | 2023-02-19 11:55:59 | 2023-02-19 11:56:02 |
Judging History
answer
#include <iostream>
#include <cstdio>
#include <cmath>
#define rep(i,a,b) for(int i=a;i<=b;i++)
#define per(i,a,b) for(int i=a;i>=b;i--)
using namespace std;
const int N=4e5+5;
typedef long long ll;
int n,a[N],b[N];
struct node{
int Min,l,r,tag;
ll sum;
}seg[N<<2];
ll calc(int l,int r,int w){
return 1ll*(r-l+1)*w;
}
void pushdown(int p){
if(seg[p].tag==-1) return ;
int ls=p<<1,rs=p<<1|1,&tg=seg[p].tag;
seg[ls].tag=tg;
seg[rs].tag=tg;
seg[ls].sum=calc(seg[ls].l,seg[ls].r,tg);
seg[rs].sum=calc(seg[rs].l,seg[rs].r,tg);
tg=-1;
}
void upd(int p){
seg[p].Min=min(seg[p<<1].Min,seg[p<<1|1].Min);
seg[p].sum=seg[p<<1].sum+seg[p<<1|1].sum;
}
int queryless(int p,int l,int r,int x){
if(l==r){
return seg[p].Min<=x?l:(n+1);
}
pushdown(p);
int mid=(l+r)>>1;
if(seg[p<<1].Min<=x) return queryless(p<<1,l,mid,x);
else return queryless(p<<1|1,mid+1,r,x);
}
int querypre(int p,int l,int r,int R){
if(r<=R){
return seg[p].Min;
}
if(l>R) return n+1;
pushdown(p);
int mid=(l+r)>>1;
return min(querypre(p<<1,l,mid,R),querypre(p<<1|1,mid+1,r,R));
}
void build(int p,int l,int r){
if(l==r){
seg[p].tag=-1;
seg[p].Min=a[l];
seg[p].sum=b[l];
seg[p].l=l; seg[p].r=r;
return ;
}
seg[p].l=l; seg[p].r=r;
seg[p].tag=-1;
int mid=(l+r)>>1;
build(p<<1,l,mid),build(p<<1|1,mid+1,r);
upd(p);
}
void modify(int p,int l,int r,int L,int R,int x){
if(L==l&&r==R){
seg[p].tag=x;
seg[p].sum=calc(l,r,x);
//printf("$$$ %d %d %d %lld %d\n",p,l,r,seg[p].sum,seg[p].tag);
return ;
}
pushdown(p);
int mid=(l+r)>>1;
if(R<=mid) modify(p<<1,l,mid,L,R,x); else
if(L>mid) modify(p<<1|1,mid+1,r,L,R,x); else
modify(p<<1,l,mid,L,mid,x),modify(p<<1|1,mid+1,r,mid+1,R,x);
upd(p);
//printf("$$$ %d %d %d %lld %d\n",p,l,r,seg[p].sum,seg[p].tag);
}
void Modify(int p,int l,int r,int x){
if(l==r){
seg[p].Min=a[x];
return ;
}
pushdown(p);
int mid=(l+r)>>1;
if(x<=mid) Modify(p<<1,l,mid,x);
else Modify(p<<1|1,mid+1,r,x);
upd(p);
}
int main(){
scanf("%d",&n);
rep(i,1,n) scanf("%d",a+i);
b[1]=a[1];
rep(i,2,n) b[i]=min(b[i-1],a[i]);
build(1,1,n);
printf("%lld\n",seg[1].sum);
int Q; scanf("%d",&Q);
while(Q--){
int opt,p;
scanf("%d%d",&opt,&p);
p++;
//if(n>=100) printf("#%d %d\n",opt,p);
if(opt==1){
a[p]++;
Modify(1,1,n,p);
int Min=querypre(1,1,n,p);
int ps=queryless(1,1,n,Min-1);
modify(1,1,n,p,ps-1,Min);
}else{
a[p]--;
Modify(1,1,n,p);
int Min=querypre(1,1,n,p);
int ps=queryless(1,1,n,Min-1);
modify(1,1,n,p,ps-1,Min);
if(n>=100) printf("### %d %d %d\n",p,ps,Min);
if(n>=100){
b[1]=a[1];
rep(i,2,n) b[i]=min(b[i-1],a[i]);
b[n+1]=-1;
if(b[ps]>b[p]||b[p]!=Min||b[ps-1]<Min) puts("FUCK");
}
}
printf("%lld\n",seg[1].sum);
}
return 0;
}
/*
10
3 8 1 4 10 3 10 9 7 10
8
2 5
1 4
1 2
1 4
1 3
1 3
1 0
2 8
10
4 8 2 6 12 3 10 9 6 10
2
2 5
2 8
*/
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 2ms
memory: 3592kb
input:
5 2 1 3 0 2 6 1 0 1 1 2 4 1 3 2 1 2 1
output:
4 5 7 7 9 7 3
result:
ok 7 numbers
Test #2:
score: 0
Accepted
time: 0ms
memory: 3648kb
input:
1 0 0
output:
0
result:
ok 1 number(s): "0"
Test #3:
score: 0
Accepted
time: 2ms
memory: 3552kb
input:
10 3 8 1 4 10 3 10 9 7 10 20 2 5 1 4 1 2 1 4 1 3 1 3 1 0 2 8 1 5 1 4 1 0 1 3 1 8 1 6 1 4 1 1 1 5 1 9 1 6 2 7
output:
14 14 14 22 22 22 22 24 24 24 24 26 26 26 26 26 26 26 26 26 26
result:
ok 21 numbers
Test #4:
score: 0
Accepted
time: 2ms
memory: 3820kb
input:
10 9 8 7 5 5 4 3 2 1 1 20 2 4 1 8 2 6 1 2 1 2 2 5 2 2 1 0 1 6 1 6 2 9 1 2 2 7 2 8 2 3 1 9 1 7 1 4 2 6 1 7
output:
45 44 45 44 45 45 44 44 45 46 46 45 45 43 43 42 43 44 44 44 45
result:
ok 21 numbers
Test #5:
score: -100
Wrong Answer
time: 2ms
memory: 3588kb
input:
100 969 519 608 546 957 82 670 100 92 581 974 529 970 54 639 216 238 620 966 162 430 10 446 884 895 292 450 180 619 389 943 855 204 605 514 997 325 98 643 915 744 249 333 431 160 434 714 976 168 573 682 69 873 285 668 561 159 858 864 683 266 564 350 214 461 421 213 568 279 624 749 433 735 437 978 95...
output:
4923 4923 4505 ### 50 101 10 4505 4505 ### 3 6 101 FUCK 3669 ### 42 101 10 3669 3669 ### 9 14 82 3669 3251 ### 98 101 10 3251 ### 33 101 10 3251 3251 ### 84 101 10 3251 ### 27 101 10 3251 3251 3251 3251 3251 3251 ### 56 101 10 3251 3251 3251 ### 99 101 10 3251 3251 3251 ### 36 101 10 3251 3251 3251 ...
result:
wrong answer 3rd numbers differ - expected: '4923', found: '4505'