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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#664525 | #6531. Base Station Construction | Ayaya | WA | 44ms | 16916kb | C++14 | 2.1kb | 2024-10-21 20:59:40 | 2024-10-21 20:59:40 |
Judging History
answer
#include<bits/stdc++.h>
#include<iostream>
#include<algorithm>
#include<cstdio>
#include<cstring>
#include<string>
#include<cmath>
#include<unordered_map>
#include<vector>
#include<bitset>
#include<queue>
#include<set>
#include<map>
#include<ctime>
#include<random>
#include<numeric>
using namespace std;
#define int long long
#define ll long long
#define ull unsigned long long
#define lc (x<<1)
#define rc (x<<1|1)
#define pii pair<int,int>
#define mkp make_pair
#define fi first
#define se second
#define cout (cerr<<">> ",cout)
const int Mx=500005,p=998244353;
int read(){
char ch=getchar();
int Alice=0,Aya=1;
while(ch<'0'||ch>'9'){
if(ch=='-') Aya=-Aya;
ch=getchar();
}
while(ch>='0'&&ch<='9')
Alice=(Alice<<3)+(Alice<<1)+(ch^48),ch=getchar();
return (Aya==1?Alice:-Alice);
}
int n,m;
int cost[Mx];
struct Seg{
int l,r;
bool operator <(const Seg&o)const{
return l==o.l?r<o.r:l<o.l;
}
}a[Mx],c[Mx];
int f[Mx];
int t[Mx];
void Ins(int i,int k){
for(;i<=m+1;i+=(i&-i)) t[i]=min(t[i],k);
}
int Qry(int i){
int res=1e18;
for(;i;i&=(i-1)) res=min(res,t[i]);
return res;
}
void Solve(){
n=read();
for(int i=1;i<=n;i++) cost[i]=read(),t[i]=1e18;
m=read();
for(int i=1;i<=m;i++){
a[i].l=read(),a[i].r=read();
}
sort(a+1,a+m+1);
int M=1;
for(int i=2;i<=m;i++){
if(a[i].r<=a[M].r) a[M]=a[i];
else a[++M]=a[i];
}
m=M;
int ans=1e18;
Ins(m+1,0);
for(int i=1;i<=n;i++){
int L=1,R=m,ok=-1;
while(L<=R){
int mid=((L+R)>>1);
if(a[mid].r>=i) R=mid-1,ok=mid;
else L=mid+1;
}
c[i].l=ok;
L=1,R=m,ok=-1;
while(L<=R){
int mid=((L+R)>>1);
if(a[mid].l<=i) L=mid+1,ok=mid;
else R=mid-1;
}
c[i].r=ok;
//cout<<c[i].l<<" "<<c[i].r<<endl;
if(c[i].l==-1||c[i].r==-1){
f[i]=1e18;
continue;
}
int res=1e18;
for(int j=0;j<i;j++){
if(c[j].r+1>=c[i].l) res=min(res,f[j]);
}
f[i]=Qry(m+2-c[i].l)+cost[i];
Ins(m+2-(c[i].r+1),f[i]);
if(c[i].r==m) ans=min(ans,f[i]);
}
printf("%lld\n",ans);
}
signed main(){
int T=read();
while(T--) Solve();
return 0;
}
/*
Hello!!
Sample:
-------------------
*/
Details
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Test #1:
score: 100
Accepted
time: 2ms
memory: 11976kb
input:
2 5 3 2 4 1 100 3 1 3 2 4 5 5 5 7 3 4 2 2 3 1 4 2 3 4 5
output:
102 5
result:
ok 2 number(s): "102 5"
Test #2:
score: -100
Wrong Answer
time: 44ms
memory: 16916kb
input:
6201 12 88 78 46 95 84 98 55 3 68 42 6 18 19 6 9 10 11 12 12 8 11 8 12 2 3 2 3 1 5 9 9 7 8 6 11 2 4 12 12 2 4 2 9 7 10 8 8 1 7 6 11 5 76 27 48 66 61 2 1 4 3 5 8 64 81 20 6 86 9 4 55 1 7 7 9 1 43 18 81 11 22 9 61 83 14 5 6 2 6 5 8 1 4 9 9 9 9 7 7 2 5 8 9 5 6 4 8 5 8 9 9 6 6 10 66 41 84 7 80 31 22 96 ...
output:
141 48 4 126 207 141 23 170 159 139 153 194 136 62 93 93 209 89 124 130 91 27 1 193 158 93 239 303 236 150 177 57 46 18 24 66 83 160 108 62 35 122 156 77 115 138 54 242 76 28 171 86 311 244 262 87 302 81 86 173 30 129 75 91 77 116 81 196 142 154 77 111 194 247 211 53 66 17 145 94 153 137 177 24 174 ...
result:
wrong answer 5th numbers differ - expected: '303', found: '207'