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QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#48213 | #4636. Optimal Assortment | Appleblue17 | WA | 482ms | 43780kb | C++14 | 1.6kb | 2022-09-12 12:59:59 | 2022-09-12 13:00:01 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const long long N=1e6+5,W=1e6;
long long n,m;
long long V[N],L[N],R[N];
long long f[N*4],g[N*4];
void modify(long long l,long long r,long long o,long long pos,long long x,long long y){
if(l==r){
f[o]+=x,g[o]+=y;
return ;
}
long long mid=(l+r)>>1;
if(pos<=mid) modify(l,mid,o<<1,pos,x,y);
else modify(mid+1,r,o<<1|1,pos,x,y);
f[o]=f[o<<1]+f[o<<1|1];
g[o]=g[o<<1]+g[o<<1|1];
}
long long SF,SG;
void query(long long l,long long r,long long o,long long sf,long long sg){
if(l==r){
sf+=f[o],sg+=g[o];
SF=sf,SG=sg;
return ;
}
long long mid=(l+r)>>1;
long long nsf=sf+f[o<<1|1],nsg=sg+g[o<<1|1];
if(f[o<<1|1] && nsg-mid*nsf>=(mid+1)*R[0]) query(mid+1,r,o<<1|1,sf,sg);
else query(l,mid,o<<1,nsf,nsg);
}
void solve(){
query(1,W,1,0,0);
if(!SF){
puts("0/1");
return ;
}
long long x=SG,y=R[0]+SF,g=__gcd(x,y);
printf("%lld/%lld\n",x/g,y/g);
}
int main(){
cin>>n>>m;
for(long long i=1;i<=n;i++) scanf("%lld",&V[i]);
for(long long i=0;i<=n;i++) scanf("%lld",&L[i]);
for(long long i=0;i<=n;i++) scanf("%lld",&R[i]);
for(long long i=1;i<=n;i++) modify(1,W,1,V[i],L[i],L[i]*V[i]);
solve();
for(int T=1;T<=m;T++){
long long typ,x,y,z;
scanf("%lld",&typ);
if(typ==1){
scanf("%lld%lld%lld",&x,&y,&z);
modify(1,W,1,V[x],-L[x],-L[x]*V[x]);
L[x]=y,R[x]=z;
modify(1,W,1,V[x],L[x],L[x]*V[x]);
}
else{
scanf("%lld%lld",&x,&y);
modify(1,W,1,V[x],-L[x],-L[x]*V[x]);
V[x]=y;
modify(1,W,1,V[x],L[x],L[x]*V[x]);
}
solve();
}
}
詳細信息
Test #1:
score: 100
Accepted
time: 3ms
memory: 7952kb
input:
2 5 4 2 4 3 2 4 3 2 2 1 2 1 1 2 3 1 0 0 0 1 1 0 0 1 2 0 0
output:
16/9 10/9 1/1 2/1 2/1 0/1
result:
ok 6 lines
Test #2:
score: -100
Wrong Answer
time: 482ms
memory: 43780kb
input:
200000 200000 959139 199252 470888 74578 802746 396295 386884 721198 628655 722503 207868 647942 87506 792718 761498 917727 843338 908043 952768 268783 375312 414369 319712 96230 277106 168102 263554 936674 246545 667941 198849 268921 191459 436316 134606 802932 515506 837311 465964 394766 17626 650...
output:
311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 311567211361053/313072603 31156721136105...
result:
wrong answer 142nd lines differ - expected: '312363185627235/313871594', found: '312387878380763/313896406'