#include "bits/stdc++.h"
using namespace std;
signed main () {
int n, k, q;
cin >> n >> k >> q;
vector <int> a(n);
for(int i = 0; i < n; i ++) cin >> a[i];
int cnt[k];
memset(cnt, 0, sizeof(cnt));
while(q --) {
int val, sz;
cin >> val >> sz;
cnt[val] += sz;
}
int mn = 1e9, pref[k];
memset(pref, 0, sizeof(pref));
int l = 0, r = 0;
for(;r<n;r++){
pref[a[r]] ++;
for(int j = 0; j < k; j ++) {
if(cnt[j] <= pref[j]) continue;
goto end;
}
break;
end:;
}
if(r == n) {
cout << "impossible";
return 0;
}
mn = r-l+1;
for(;r < n;) {
while(1) {
if(l == n) {
break;
// goto end2;
}
pref[a[l]] --;
// cout << pref[a[l]] << " ";
if(pref[a[l]] < cnt[a[l]]) {
pref[a[l]] ++;
// l--;
break;
}
l ++;
}
// cout << l << " " << r << "\n";
mn = min(mn, r-l+1);
r++;
if(r == n) break;
pref[a[r]] ++;
}
cout << mn;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
2 ms |
348 KB |
Output is correct |
4 |
Correct |
3 ms |
448 KB |
Output is correct |
5 |
Correct |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
440 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
22 ms |
1372 KB |
Output is correct |
2 |
Correct |
24 ms |
1372 KB |
Output is correct |
3 |
Correct |
24 ms |
1628 KB |
Output is correct |
4 |
Correct |
23 ms |
1628 KB |
Output is correct |
5 |
Correct |
491 ms |
2900 KB |
Output is correct |
6 |
Correct |
25 ms |
1372 KB |
Output is correct |
7 |
Correct |
25 ms |
1800 KB |
Output is correct |
8 |
Correct |
655 ms |
4032 KB |
Output is correct |
9 |
Correct |
124 ms |
2384 KB |
Output is correct |
10 |
Correct |
22 ms |
1368 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
2 ms |
348 KB |
Output is correct |
14 |
Correct |
3 ms |
448 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
444 KB |
Output is correct |
17 |
Correct |
0 ms |
440 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
63 ms |
3420 KB |
Output is correct |
2 |
Correct |
58 ms |
3252 KB |
Output is correct |
3 |
Correct |
47 ms |
2728 KB |
Output is correct |
4 |
Correct |
24 ms |
1372 KB |
Output is correct |
5 |
Correct |
75 ms |
4136 KB |
Output is correct |
6 |
Correct |
79 ms |
4660 KB |
Output is correct |
7 |
Correct |
38 ms |
2132 KB |
Output is correct |
8 |
Correct |
55 ms |
2340 KB |
Output is correct |
9 |
Correct |
22 ms |
1372 KB |
Output is correct |
10 |
Correct |
24 ms |
1368 KB |
Output is correct |
11 |
Correct |
24 ms |
1628 KB |
Output is correct |
12 |
Correct |
23 ms |
1640 KB |
Output is correct |
13 |
Correct |
496 ms |
2980 KB |
Output is correct |
14 |
Correct |
27 ms |
1624 KB |
Output is correct |
15 |
Correct |
27 ms |
1716 KB |
Output is correct |
16 |
Correct |
666 ms |
4028 KB |
Output is correct |
17 |
Correct |
122 ms |
2132 KB |
Output is correct |
18 |
Correct |
22 ms |
1368 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
348 KB |
Output is correct |
21 |
Correct |
2 ms |
348 KB |
Output is correct |
22 |
Correct |
4 ms |
452 KB |
Output is correct |
23 |
Correct |
1 ms |
448 KB |
Output is correct |
24 |
Correct |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |