#include<bits/stdc++.h>
#define ll long long
#define pb push_back
#define F first
#define S second
#define coy cout<<"YES\n"
#define con cout<<"NO\n"
#define co1 cout<<"-1\n"
#define sc(x) scanf("%lld",&x)
#define all(x) x.begin(),x.end()
#define fast ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
using namespace std;
const int SI=3e5+7;
ll INF=8e18+7;
int dx[] = {1 , -1 , 0 , 0};
int dy[] = {0 , 0 , 1 , -1};
int MOD=1e9+7;
ll n,k,r;
ll a[SI],w[SI],c[SI];
ll st;
int main()
{
fast
cin>>n>>k>>r;
for (int i=0;i<n;i++)
cin>>a[i];
for (int i=0;i<r;i++)
{
ll x,y;
cin>>x>>y;
w[x]=y;
st++;
}
ll f=0,s=0,ans=INF;
while (f<n&&s<n)
{
while (s<n&&st)
{
c[a[s]]++;
if (c[a[s]]==w[a[s]])
st--;
s++;
}
//cout<<f<<" "<<s<<"\n";
if (s==n&&st)
break;
ans=min(ans,s-f);
if (c[a[f]]==w[a[f]])
st++;
c[a[f++]]--;
}
while (f<n)
{
if (st==0)
ans=min(ans,s-f);
if (c[a[f]]==w[a[f]])
st++;
c[a[f++]]--;
}
if (ans==INF)
cout <<"impossible\n";
else cout <<ans;
// use scanf not cin
return 0;
}
/*
5 2 2
0 1 1 0 1
0 1
1 1
*/
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
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 |
280 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
0 ms |
340 KB |
Output is correct |
10 |
Correct |
0 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
1876 KB |
Output is correct |
2 |
Correct |
11 ms |
1876 KB |
Output is correct |
3 |
Correct |
13 ms |
1864 KB |
Output is correct |
4 |
Correct |
11 ms |
1904 KB |
Output is correct |
5 |
Correct |
16 ms |
2504 KB |
Output is correct |
6 |
Correct |
11 ms |
1812 KB |
Output is correct |
7 |
Correct |
12 ms |
1876 KB |
Output is correct |
8 |
Correct |
23 ms |
3480 KB |
Output is correct |
9 |
Correct |
15 ms |
1912 KB |
Output is correct |
10 |
Correct |
12 ms |
1876 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
368 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
340 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
340 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
0 ms |
328 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
27 ms |
3016 KB |
Output is correct |
2 |
Correct |
24 ms |
2772 KB |
Output is correct |
3 |
Correct |
20 ms |
2848 KB |
Output is correct |
4 |
Correct |
11 ms |
1876 KB |
Output is correct |
5 |
Correct |
28 ms |
3348 KB |
Output is correct |
6 |
Correct |
32 ms |
4700 KB |
Output is correct |
7 |
Correct |
15 ms |
1916 KB |
Output is correct |
8 |
Correct |
18 ms |
2180 KB |
Output is correct |
9 |
Correct |
11 ms |
1876 KB |
Output is correct |
10 |
Correct |
12 ms |
1876 KB |
Output is correct |
11 |
Correct |
12 ms |
1876 KB |
Output is correct |
12 |
Correct |
11 ms |
1884 KB |
Output is correct |
13 |
Correct |
17 ms |
2448 KB |
Output is correct |
14 |
Correct |
11 ms |
1864 KB |
Output is correct |
15 |
Correct |
14 ms |
1900 KB |
Output is correct |
16 |
Correct |
21 ms |
3464 KB |
Output is correct |
17 |
Correct |
14 ms |
1876 KB |
Output is correct |
18 |
Correct |
14 ms |
1800 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
0 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
1 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
340 KB |
Output is correct |
32 |
Correct |
1 ms |
328 KB |
Output is correct |
33 |
Correct |
0 ms |
340 KB |
Output is correct |