#include<bits/stdc++.h>
#define MEM(a, b) memset(a, (b), sizeof(a))
#define ALL(c) (c).begin(),(c).end()
#define ll long long
#define LINF (ll)1e18
#define INF (int)1e9
#define pb push_back
#define mp make_pair
#define MOD 1000000007
#define IO ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define MAX 200050
using namespace std;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
int tree[MAX*4];
void update(int n, int b, int e, int idx, int val) {
if (b>e || b>idx || e<idx) return;
if (b==e) {
tree[n] = val;
return;
}
int mid = (b+e)/2;
update(n*2,b,mid,idx,val);
update(n*2+1,mid+1,e,idx,val);
tree[n] = min(tree[n*2],tree[n*2+1]);
}
int query(int n, int b, int e, int l, int r) {
if (l>e || b>r) return INF;
if (b>=l && e<=r) return tree[n];
int mid = (b+e)/2;
return min(query(n*2,b,mid,l,r),query(n*2+1,mid+1,e,l,r));
}
int main() {
IO;
for(int i=0;i<MAX-1;i++) tree[i] = INF;
int n, q; cin >> n >> q;
while(q--) {
char c; int a, b;
cin >> c >> a >> b;
if(c=='M') update(1, 0, n-1, b-1, a);
else {
int l = b-1; int h = MAX-1;
while(l<h) {
int mid = (l+h)>>1;
int tr = query(1, 0, n-1, l, mid);
if(a>=tr) h = mid-1;
else l = mid+1;
}
if(l+1>=MAX) cout << -1 << "\n";
else cout << l+1 << "\n";
}
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
3 ms |
1144 KB |
Output isn't correct |
2 |
Incorrect |
3 ms |
1144 KB |
Output isn't correct |
3 |
Incorrect |
11 ms |
1144 KB |
Output isn't correct |
4 |
Execution timed out |
1068 ms |
6764 KB |
Time limit exceeded |
5 |
Incorrect |
762 ms |
5624 KB |
Output isn't correct |
6 |
Incorrect |
884 ms |
6852 KB |
Output isn't correct |
7 |
Incorrect |
934 ms |
7120 KB |
Output isn't correct |