| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 620912 |
2022-08-03T10:20:42 Z |
amin |
Horses (IOI15_horses) |
C++14 |
|
79 ms |
56748 KB |
#include "horses.h"
#include<bits/stdc++.h>
using namespace std;
long long x[500001];
long long seg[1000002],segg[1000002],mu[1000002];
long long y[500001];
long long h=(1e9+1);
long long mod=1e9+7;
void build(long v,long tl,long tr)
{
if(tl==tr)
{
seg[v]=x[tl];
mu[v]=seg[v];
return ;
}
long tm=(tl+tr)/2;
build(v*2,tl,tm);
build(v*2+1,tm+1,tr);
seg[v]=seg[v*2]*seg[v*2+1];
mu[v]=(mu[v*2]*mu[v*2+1])%mod;
if(seg[v]>h)
{
seg[v]=h;
}
}
void update(long v,long tl,long tr,long in)
{
if(tl==tr&&tl==in)
{
seg[v]=x[in];
mu[v]=seg[v];
return ;
}
long tm=(tl+tr)/2;
if(tm>=in)
{
update(v*2,tl,tm,in);
}else
{
update(v*2+1,tm+1,tr,in);
}
seg[v]=seg[v*2]*seg[v*2+1];
mu[v]=(mu[v*2]*mu[v*2+1])%mod;
if(seg[v]>h)
{
seg[v]=h;
}
}
long long get(long v,long tl,long tr,long l,long r)
{
if(l==tl&&r==tr)
{
return seg[v];
}
long tm=(tl+tr)/2;
if(r<=tm)
{
return get(v*2,tl,tm,l,r);
}
if(l>tm)
{
return get(v*2+1,tm+1,tr,l,r);
}
long long j=get(v*2,tl,tm,l,tm)*get(v*2+1,tm+1,tr,tm+1,r);
if(j>h)
{
j=h;
}
return j;
}
long n;
void build2(long v,long tl,long tr)
{
if(tl==tr)
{
segg[v]=tl;
return ;
}
long tm=(tl+tr)/2;
build2(v*2,tl,tm);
build2(v*2+1,tm+1,tr);
long long a=segg[v*2];
long long b=segg[v*2+1];
// cout<<a<<' '<<b<<' ';
// cout<<y[a]<<' '<<y[b]*get(1,0,n-1,a+1,b)<<endl;
if(y[a]>(y[b]*get(1,0,n-1,a+1,b)))
{
segg[v]=a;
}else
{
segg[v]=b;
}
}
void update2(long v,long tl,long tr,long in)
{
if(tl==tr)
{
segg[v]=tl;
return ;
}
long tm=(tl+tr)/2;
if(tm>=in)
{
update2(v*2,tl,tm,in);
}else
{
update2(v*2+1,tm+1,tr,in);
}
long long a=segg[v*2];
long long b=segg[v*2+1];
// cout<<a<<' '<<b<<' ';
// cout<<y[a]<<' '<<y[b]*get(1,0,n-1,a+1,b)<<endl;
if(y[a]>(y[b]*get(1,0,n-1,a+1,b)))
{
segg[v]=a;
}else
{
segg[v]=b;
}
}
long long get2(long v,long tl,long tr,long l,long r)
{
if(l==tl&&r==tr)
{
return mu[v];
}
long tm=(tl+tr)/2;
if(r<=tm)
{
return get2(v*2,tl,tm,l,r);
}
if(l>tm)
{
return get2(v*2+1,tm+1,tr,l,r);
}
long long j=(get2(v*2,tl,tm,l,tm)*get2(v*2+1,tm+1,tr,tm+1,r))%mod;
return j;
}
int init(int N, int X[], int Y[]) {
// cout<<mod<<endl;
n=N;
for(long i=0;i<n;i++)
{
x[i]=X[i];
y[i]=Y[i];
}
build(1,0,n-1);
long jj=0;
long in=max(n-40,jj);
long long ans=y[in];
long long o=1;
long long t=in;
for(long i=in+1;i<n;i++)
{
o*=x[i];
if(o*y[i]<y[t])
{
continue;
}else
{
t=i;
o=1;
}
}
cout<<get(1,0,n-1,0,t)*y[t]<<endl;
}
int updateX(int pos, int val) {
x[pos]=val;
update(1,0,n-1,pos);
long jj=0;
long in=max(n-40,jj);
long long ans=y[in];
long long o=1;
long long t=in;
for(long i=in+1;i<n;i++)
{
o*=x[i];
if(o*y[i]<y[t])
{
continue;
}else
{
t=i;
o=1;
}
}
cout<<get(1,0,n-1,0,t)*y[t]<<endl;
}
int updateY(int pos, int val) {
y[pos]=val;
update(1,0,n-1,pos);
long jj=0;
long in=max(n-40,jj);
long long ans=y[in];
long long o=1;
long long t=in;
for(long i=in+1;i<n;i++)
{
o*=x[i];
if(o*y[i]<y[t])
{
continue;
}else
{
t=i;
o=1;
}
}
cout<<get(1,0,n-1,0,t)*y[t]<<endl;
}
Compilation message
horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:159:14: warning: unused variable 'ans' [-Wunused-variable]
159 | long long ans=y[in];
| ^~~
horses.cpp:178:1: warning: no return statement in function returning non-void [-Wreturn-type]
178 | }
| ^
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:185:14: warning: unused variable 'ans' [-Wunused-variable]
185 | long long ans=y[in];
| ^~~
horses.cpp:202:1: warning: no return statement in function returning non-void [-Wreturn-type]
202 | }
| ^
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:209:14: warning: unused variable 'ans' [-Wunused-variable]
209 | long long ans=y[in];
| ^~~
horses.cpp:225:1: warning: no return statement in function returning non-void [-Wreturn-type]
225 | }
| ^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
2 ms |
416 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
468 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
79 ms |
56748 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
468 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
2 ms |
480 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
