# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
82461 |
2018-10-30T19:51:09 Z |
Genezio |
Deda (COCI17_deda) |
C++14 |
|
195 ms |
3804 KB |
#include<bits/stdc++.h>
using namespace std;
#define pii pair<int,int>
#define mp make_pair
#define F first
#define S second
#define pb push_back
#define ll long long
#define fe 2*x+1
#define fd 2*x+2
#define m ((l+r)>>1)
const int N = 200010;
const int INF = 0x3f3f3f3f;
const ll mod = 1e9+7;
int v[N];
int tree[4*N];
void build(int x,int l,int r) {
if(l==r) {
tree[x]=INF;
return;
}
build(fe,l,m);
build(fd,m+1,r);
tree[x]=min(tree[fe],tree[fd]);
}
void upd(int x,int l,int r,int p,int v) {
if(l==r) {
tree[x]=v;
return;
}
if(p<=m) {
upd(fe,l,m,p,v);
} else {
upd(fd,m+1,r,p,v);
}
tree[x]=min(tree[fe],tree[fd]);
}
int query(int x,int l,int r,int ql,int qr,int v) {
if(r<ql||l>qr) {
return INF;
}
if(l==r) {
if(tree[x]<=v) return l;
else return INF;
}
if(ql<=l&&r<=qr) {
if(tree[fe]<=v) return query(fe,l,m,ql,qr,v);
else if(tree[fd]<=v) return query(fd,m+1,r,ql,qr,v);
else return INF;
}
return min(query(fe,l,m,ql,qr,v),query(fd,m+1,r,ql,qr,v));
}
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int n,q,a,b;
char c;
cin>>n>>q;
build(0,0,n-1);
for(int i=0;i<q;i++) {
cin>>c>>a>>b;
if(c=='M') {
upd(0,0,n-1,b-1,a);
} else {
int aux=query(0,0,n-1,b-1,n-1,a);
if(aux==INF) cout<<"-1\n";
else cout<<aux+1<<"\n";
}
}
/*for(int i=0;i<4*n;i++) {
cout<<i<<" "<<tree[i]<<"\n";
}*/
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
380 KB |
Output is correct |
2 |
Correct |
2 ms |
476 KB |
Output is correct |
3 |
Correct |
4 ms |
544 KB |
Output is correct |
4 |
Correct |
166 ms |
3804 KB |
Output is correct |
5 |
Correct |
154 ms |
3804 KB |
Output is correct |
6 |
Correct |
184 ms |
3804 KB |
Output is correct |
7 |
Correct |
195 ms |
3804 KB |
Output is correct |