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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
#19200#1877. Matryoshka DollsscwWA 690ms32444kbC++2.1kb2022-01-28 14:21:202022-05-06 04:26:08

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2022-05-06 04:26:08]
  • 评测
  • 测评结果:WA
  • 用时:690ms
  • 内存:32444kb
  • [2022-01-28 14:21:20]
  • 提交

answer

#include<bits/stdc++.h>
#define int long long
#define MAXN 500007
using namespace std;
int S=707;
int n,m,a[MAXN],p[MAXN],cnt;
int rs[710][710],ans[MAXN];
int ls[MAXN];
struct data{
	int l,r;
}op[MAXN];

inline int read(){
    int x=0,f=1;
    char ch=getchar();
    while(ch<'0'||ch>'9'){
        if(ch=='-')
            f=-1;
        ch=getchar();
    }
    while(ch>='0'&&ch<='9'){
        x=(x<<1)+(x<<3)+(ch^48);
        ch=getchar();
    }
    return x*f;
}

int minn[710][710],maxx[710][710];
int pr[MAXN],nx[MAXN],v[710];
int pre[710][710],suc[710][710];

inline int calc(int x,int y){
	if(!x||!y||x>n||y>n)return 0;
	if (p[x]>p[y])
		return p[x]-p[y];
	else
		return p[y]-p[x];
}
/*
5 2
5 4 2 3 1
3 4
2 5

1
5
*/ 
signed main(){
	n=read(),m=read(),cnt=n/S+1;
	for(int i=1;i<=n;i++)
		a[i]=read();
	for(int i=1;i<=n;i++)
		p[a[i]]=i;
	for(int i=1;i<=m;i++)
		op[i].l=read(),op[i].r=read(),ls[i]=-1;
		
	
	for(int kk=1;kk<=cnt;kk++){
		int size=0;
		for(int i=1;i<=n;i++){
			if((i/S+1)==kk){
				++size;
				nx[i]=pr[i]=size;
				v[size]=a[i];
			}
			else 
				pr[i]=nx[i]=0;
		}
		
		int w=0;
		for(int i=1;i<=n;i++){
			if (pr[i])
				w=pr[i];
			else 
				pr[i]=w;
		}
		w=size+1;
		for(int i=n;i;i--){
			if (nx[i])
				w=nx[i];
			else
				nx[i]=w;
		}
		for(int i=1;i<=size;i++){
			minn[i][i]=maxx[i][i]=v[i];
			pre[i][i]=0,suc[i][i]=n+1;
			for(int j=i+1;j<=size;j++){
				suc[i][j]=suc[i][j-1],pre[i][j]=pre[i][j-1];
				minn[i][j]=min(minn[i][j-1],v[j]),maxx[i][j]=max(maxx[i][j-1],v[j]);
				if(v[j]<v[i])pre[i][j]=max(pre[i][j],v[j]);
				if(v[j]>v[i])suc[i][j]=min(suc[i][j],v[j]);
			}
		}
		
		for(int i=1;i<=size;i++){
			rs[i][i]=0;
			for(int j=i-1;j;j--){
				int sl=pre[j][i],sr=suc[j][i];
				rs[i][j]=rs[i][j+1]+calc(sl,v[j])+calc(v[j],sr)-calc(sl,sr);
			}
		}
		for(int i=1;i<=m;i++){
			int L=nx[op[i].l],R=pr[op[i].r];
			if(L<=R){
				ans[i]+=rs[R][L];
				if(~ls[i])
					ans[i]+=abs(p[minn[L][R]]-ls[i]);
				ls[i]=p[maxx[L][R]];
			}
		}
	}
	for(int i=1;i<=m;i++)
		printf("%lld\n",ans[i]);
	return 0;
}


详细

Test #1:

score: 100
Accepted
time: 4ms
memory: 26212kb

input:

5 5
1 5 2 4 3
1 5
1 4
1 3
1 2
1 1

output:

7
5
3
1
0

result:

ok 5 number(s): "7 5 3 1 0"

Test #2:

score: 0
Accepted
time: 0ms
memory: 26272kb

input:

1 1
1
1 1

output:

0

result:

ok 1 number(s): "0"

Test #3:

score: -100
Wrong Answer
time: 690ms
memory: 32444kb

input:

100000 1
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 ...

output:

275984

result:

wrong answer 1st numbers differ - expected: '4999950000', found: '275984'