#include<bits/stdc++.h>
using namespace std;
#define int long long
bool debug = false;
signed main(){
cin.tie(0);
ios_base::sync_with_stdio(0);
int n, k, r, temp; cin >> n >> k >> r;
bool found = false;
vector<int> v(n);
for (int i = 0 ;i < n; ++i){
cin >> v[i];
}
vector<int> val(k, 1e9+7);
for (int i = 0;i < r; ++i){
cin >> temp;
cin >> val[temp];
}
int lo = 1, hi = n+1, mid = (lo + hi)/2;
temp = 0;
while (lo < hi-1){
if(debug) cout << lo << ' ' << mid << ' ' << hi << " ";
temp = 0;
found = false;
vector<int> cur(n, 0);
for (int i = 0; i < mid; ++i){
cur[v[i]]++;
if(cur[v[i]] == val[v[i]])temp++;
}
if(debug)cout << temp << ' ';
if(temp == r){
hi = mid;
mid = (lo + hi)/2;
if(debug)cout <<'\n';
continue;
}
for (int i = mid; i < n && !found; ++i){
cur[v[i]]++;
cur[v[i-mid]]--;
if (v[i] != v[i-mid]){
if(cur[v[i]] == val[v[i]])temp++;
if (cur[v[i-mid]] == val[v[i-mid]]-1)temp--;
}
if(debug)cout << temp << ' ' ;
if(temp == r){
hi = mid;
mid = (lo + hi)/2;
if(debug)cout<<'\n';
found = true;
continue;
}
}
if(found)continue;
if(debug)cout<<'\n';
lo = mid;
mid = (lo + hi)/2;
}
if(debug)cout << temp << ' ';
if (temp != r && hi == n+1)cout << "impossible";
else cout << hi;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
324 KB |
Output is correct |
6 |
Incorrect |
1 ms |
316 KB |
Output isn't correct |
7 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
320 KB |
Output is correct |
12 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
28 ms |
3432 KB |
Output is correct |
2 |
Correct |
37 ms |
3412 KB |
Output is correct |
3 |
Correct |
24 ms |
3412 KB |
Output is correct |
4 |
Correct |
29 ms |
3456 KB |
Output is correct |
5 |
Correct |
37 ms |
4076 KB |
Output is correct |
6 |
Correct |
22 ms |
3432 KB |
Output is correct |
7 |
Correct |
23 ms |
3412 KB |
Output is correct |
8 |
Correct |
46 ms |
6208 KB |
Output is correct |
9 |
Correct |
35 ms |
4444 KB |
Output is correct |
10 |
Correct |
35 ms |
3832 KB |
Output is correct |
11 |
Correct |
1 ms |
384 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
328 KB |
Output is correct |
14 |
Correct |
1 ms |
372 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
320 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
23 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
38 ms |
4052 KB |
Output is correct |
2 |
Correct |
45 ms |
3924 KB |
Output is correct |
3 |
Correct |
50 ms |
3916 KB |
Output is correct |
4 |
Incorrect |
11 ms |
3412 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |