#include<iostream>
#include<fstream>
#define fin cin
#define fout cout
using namespace std;
//ifstream fin("date.in");
//ofstream fout("date.out");
int v[400001],a,b,n,q;
char c;
void build(int i,int st,int dr)
{
v[i]=1000000001;
if(st!=dr)
{
int mid=(st+dr)/2;
build(i*2,st,mid);build(i*2+1,mid+1,dr);
}
}
void update(int i,int st,int dr,int val,int poz)
{
if(st==dr) v[i]=val;
else
{
int mid=(st+dr)/2;
if(st<=poz&&poz<=mid) update(i*2,st,mid,val,poz);
else update(i*2+1,mid+1,dr,val,poz);
v[i]=min(v[i*2],v[i*2+1]);
}
}
int quarry(int i,int st,int dr,int a,int b,int y)
{
if(st==dr){if(v[i]>y) return -1; return st;}
int mid=(st+dr)/2;
if(!(a<=st&&dr<=b))
{
int val=-1;
if(a<=mid) val=quarry(i*2,st,mid,a,b,y);
if(val!=-1) return val;
if(mid+1<=b) val=quarry(i*2+1,mid+1,dr,a,b,y);
return val;
}
if(v[2*i]<=y) return quarry(i*2,st,mid,a,b,y);
if(v[2*i+1]<=y) return quarry(i*2+1,mid+1,dr,a,b,y);
return -1;
}
int main(){
fin>>n>>q;
build(1,1,n);
for(;q--;)
{
fin>>c;fin>>a>>b;///a stop b copil
if(c=='M') update(1,1,n,a,b);
if(c=='D') fout<<quarry(1,1,n,b,n,a)<<"\n";
//for(int i=1;i<=2*n-1;i++) fout<<v[i]<<" ";
//fout<<"\n";
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
308 KB |
Output is correct |
2 |
Correct |
4 ms |
252 KB |
Output is correct |
3 |
Correct |
18 ms |
428 KB |
Output is correct |
4 |
Runtime error |
5 ms |
2808 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
5 |
Correct |
691 ms |
3736 KB |
Output is correct |
6 |
Runtime error |
5 ms |
2680 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
7 |
Runtime error |
5 ms |
2684 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |