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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
#19198#1877. Matryoshka DollsscwWA 425ms27324kbC++2.1kb2022-01-28 14:19:432022-05-06 04:26:01

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 04:26:01]
  • 评测
  • 测评结果:WA
  • 用时:425ms
  • 内存:27324kb
  • [2022-01-28 14:19:43]
  • 提交

answer

#include<bits/stdc++.h>
#define ll long long
#define MAXN 500007
using namespace std;
int S=707;
int n,m,a[MAXN],p[MAXN],cnt;
ll 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
*/ 
int 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: 26288kb

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: 4ms
memory: 26252kb

input:

1 1
1
1 1

output:

0

result:

ok 1 number(s): "0"

Test #3:

score: -100
Wrong Answer
time: 425ms
memory: 27324kb

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'