#define here cerr<<"===========================================\n"
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
#define ld double
#define ll long long
#define llinf 100000000000000000LL // 10^17
#define pb push_back
#define popb pop_back
#define fi first
#define sc second
#define endl '\n'
#define pll pair<ll,ll>
#define pld pair<ld,ld>
#define sz(a) (ll)(a.size())
#define all(a) a.begin(),a.end()
#define ceri(a,l,r) {for(ll i_ = l;i_<=r;i_++) cerr<<a[i_]<< " ";cerr<<endl;}
#define daj_mi_malo_vremena ios_base::sync_with_stdio(false);cerr.tie(0);cout.tie(0);cin.tie(0);
using namespace std;
using namespace __gnu_pbds;
typedef tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update> ordered_set;
#define maxn 200005
ll n,k,r;
ll a[maxn];
ordered_set v[maxn];
ll c[maxn];
ll b[maxn];
int main(){
daj_mi_malo_vremena
cin >> n >> k >> r;
for(ll i = 1;i<=n;i++) cin >> a[i];
for(ll i = 1;i<=n;i++) a[i]++;
for(ll i = 1;i<=n;i++) v[a[i]].insert(i);
for(ll i = 1;i<=r;i++){
ll x,y; cin >> x >> y;
x++;
b[i] = x;
c[x] = y;
}
ll tr = 0;
for(ll i = 1;i<=r;i++){
ll x = b[i];
if(sz(v[x])<c[x]){
cout<<"impossible"<<endl;
return 0;
}
tr = max(tr,*v[x].find_by_order(c[x]-1));
}
ll ans = llinf;
for(ll i = 1;i<=n;i++){
ans = min(tr-i+1,ans);
ll x = a[i];
if(c[x]==0) continue;
c[x]++;
if(sz(v[x])<c[x]) break;
tr = max(tr,*v[x].find_by_order(c[x]-1));
}
cout<<ans<<endl;
return 0;
}
/*
5 2 2
0 1 1 0 1
0 1
1 1
13 4 3
1 1 3 2 0 1 2 0 0 0 0 3 1
0 2
2 1
1 2
*/
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
14 ms |
19028 KB |
Output is correct |
2 |
Correct |
13 ms |
19028 KB |
Output is correct |
3 |
Correct |
14 ms |
19028 KB |
Output is correct |
4 |
Correct |
14 ms |
19132 KB |
Output is correct |
5 |
Correct |
14 ms |
19028 KB |
Output is correct |
6 |
Correct |
15 ms |
19124 KB |
Output is correct |
7 |
Correct |
14 ms |
19128 KB |
Output is correct |
8 |
Correct |
17 ms |
19156 KB |
Output is correct |
9 |
Correct |
18 ms |
19016 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
16 ms |
19412 KB |
Output is correct |
2 |
Correct |
18 ms |
19412 KB |
Output is correct |
3 |
Correct |
17 ms |
19396 KB |
Output is correct |
4 |
Correct |
15 ms |
19384 KB |
Output is correct |
5 |
Correct |
16 ms |
19424 KB |
Output is correct |
6 |
Correct |
15 ms |
19388 KB |
Output is correct |
7 |
Correct |
14 ms |
19076 KB |
Output is correct |
8 |
Correct |
14 ms |
19028 KB |
Output is correct |
9 |
Correct |
14 ms |
19056 KB |
Output is correct |
10 |
Correct |
14 ms |
19124 KB |
Output is correct |
11 |
Correct |
15 ms |
19028 KB |
Output is correct |
12 |
Correct |
19 ms |
19116 KB |
Output is correct |
13 |
Correct |
15 ms |
19080 KB |
Output is correct |
14 |
Correct |
15 ms |
19132 KB |
Output is correct |
15 |
Correct |
15 ms |
19028 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
119 ms |
33572 KB |
Output is correct |
2 |
Correct |
84 ms |
33484 KB |
Output is correct |
3 |
Correct |
98 ms |
33568 KB |
Output is correct |
4 |
Correct |
88 ms |
33544 KB |
Output is correct |
5 |
Correct |
79 ms |
34380 KB |
Output is correct |
6 |
Correct |
85 ms |
33484 KB |
Output is correct |
7 |
Correct |
97 ms |
33684 KB |
Output is correct |
8 |
Correct |
97 ms |
34452 KB |
Output is correct |
9 |
Correct |
112 ms |
34124 KB |
Output is correct |
10 |
Correct |
98 ms |
33564 KB |
Output is correct |
11 |
Correct |
15 ms |
19412 KB |
Output is correct |
12 |
Correct |
15 ms |
19392 KB |
Output is correct |
13 |
Correct |
16 ms |
19352 KB |
Output is correct |
14 |
Correct |
18 ms |
19400 KB |
Output is correct |
15 |
Correct |
16 ms |
19412 KB |
Output is correct |
16 |
Correct |
15 ms |
19388 KB |
Output is correct |
17 |
Correct |
15 ms |
19124 KB |
Output is correct |
18 |
Correct |
14 ms |
19128 KB |
Output is correct |
19 |
Correct |
14 ms |
19028 KB |
Output is correct |
20 |
Correct |
17 ms |
19056 KB |
Output is correct |
21 |
Correct |
17 ms |
19156 KB |
Output is correct |
22 |
Correct |
14 ms |
19028 KB |
Output is correct |
23 |
Correct |
14 ms |
19128 KB |
Output is correct |
24 |
Correct |
14 ms |
19112 KB |
Output is correct |
25 |
Correct |
14 ms |
19028 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
105 ms |
36156 KB |
Output is correct |
2 |
Correct |
91 ms |
35644 KB |
Output is correct |
3 |
Correct |
87 ms |
35120 KB |
Output is correct |
4 |
Correct |
88 ms |
33480 KB |
Output is correct |
5 |
Correct |
122 ms |
36728 KB |
Output is correct |
6 |
Correct |
116 ms |
37472 KB |
Output is correct |
7 |
Correct |
101 ms |
34224 KB |
Output is correct |
8 |
Correct |
116 ms |
34652 KB |
Output is correct |
9 |
Correct |
127 ms |
33588 KB |
Output is correct |
10 |
Correct |
89 ms |
33588 KB |
Output is correct |
11 |
Correct |
89 ms |
33560 KB |
Output is correct |
12 |
Correct |
86 ms |
33536 KB |
Output is correct |
13 |
Correct |
90 ms |
34324 KB |
Output is correct |
14 |
Correct |
85 ms |
33536 KB |
Output is correct |
15 |
Correct |
93 ms |
33756 KB |
Output is correct |
16 |
Correct |
93 ms |
34396 KB |
Output is correct |
17 |
Correct |
102 ms |
34128 KB |
Output is correct |
18 |
Correct |
100 ms |
33556 KB |
Output is correct |
19 |
Correct |
15 ms |
19412 KB |
Output is correct |
20 |
Correct |
15 ms |
19396 KB |
Output is correct |
21 |
Correct |
14 ms |
19412 KB |
Output is correct |
22 |
Correct |
15 ms |
19396 KB |
Output is correct |
23 |
Correct |
15 ms |
19392 KB |
Output is correct |
24 |
Correct |
15 ms |
19412 KB |
Output is correct |
25 |
Correct |
14 ms |
19044 KB |
Output is correct |
26 |
Correct |
15 ms |
19120 KB |
Output is correct |
27 |
Correct |
15 ms |
19128 KB |
Output is correct |
28 |
Correct |
14 ms |
19040 KB |
Output is correct |
29 |
Correct |
15 ms |
19028 KB |
Output is correct |
30 |
Correct |
14 ms |
19128 KB |
Output is correct |
31 |
Correct |
14 ms |
19128 KB |
Output is correct |
32 |
Correct |
14 ms |
19028 KB |
Output is correct |
33 |
Correct |
15 ms |
19116 KB |
Output is correct |