///huynhocute123///
#include<bits/stdc++.h>
using namespace std;
#define S second
#define F first
#define pii pair<int,int>
#define piii pair<int,pair<int,int>>
#define pb push_back
#define FOR(i, a, b) for(int i = a; i <= b; ++i)
#define REP(i, a, b) for(int i = b; i >= a; --i)
#define ALL(v) v.begin(),v.end()
#define inp(name) if(fopen(name, "r")) freopen(name, "r", stdin);
#define out(name) if(fopen(name, "w")) freopen(name, "w", stdout);
//random_device rd;
//mt19937 rng(rd());
//#pragma GCC optimize ("O3")
//#pragma GCC optimize ("unroll-loops")
//#pragma GCC target("popcnt")
//#define int long long
const int maxN = 2 * 1e5 + 9 ;
const int modd = 1e9 + 7;
const int base = 2309;
const int MAX = 1e9+9;
const double pi = 3.14159265358979323846;
const double rad = 3.14159265358979323846 /180;
void minimize(int &u, int v){
if(v < u) u = v;
}
void maximize(int &u, int v){
if(v > u) u = v;
}
int n, k, t, m, res, a[maxN], ori[maxN],f[15][maxN];
int l, r;
pii q[maxN];
bool vis[maxN];
vector<int> e[maxN];
void compress(){
vector<int > tmp;
FOR(i, 1, k)tmp.pb(q[i].F);
sort(ALL(tmp));
FOR(i, 1, k){
ori[i] = q[i].F;
q[i].F = lower_bound(ALL(tmp), q[i].F) -tmp.begin() +1;
}
}
bool check(int st, int en){
FOR(i, 1, k){
if(f[q[i].F][en] - f[q[i].F][st-1] < q[i].S)return 0;
}
return 1;
}
pii get(int st){
FOR(i, 1, k){
if(f[q[i].F][n] - f[q[i].F][st-1] < q[i].S)return {0, 0};
}
l = st;
r = n;
while(l <= r){
int mid = (l +r)/2;
if(check(st, mid))r =mid -1;
else l =mid + 1;
}
return {1, l};
}
void solve(){
cin >> n >> k >> k;
FOR(i, 1, n)cin >> a[i];
FOR(i, 1, k)cin >>q[i].F >> q[i].S;
compress();
FOR(i, 1, n){
FOR(j, 1, k){
f[q[j].F][i]+= f[q[j].F ][i-1];
}
FOR(j, 1, k){
if(ori[j] == a[i]){
f[q[j].F][i]++;
break;
}
}
}
res = MAX;
FOR(i, 1, n){
pii ans = get(i);
if(ans.F == 0)break;
minimize(res, ans.S - i +1);
// cout << i << " " << ans.S << '\n';
}
if(res == MAX)cout << "impossible";
else cout << res;
// cout << q[2].F;
// cout << f[q[1].F][n];
}
signed main(){
// freopen("name.inp","r",stdin);
// freopen("name.out","w",stdout);
ios_base::sync_with_stdio(false);
cin.tie(0);
inp("task.inp");
int tc = 1;
// cin >> tc;
while( tc-- )solve();
cerr << '\n' << "Time elapsed: " << (1.0 * clock() / CLOCKS_PER_SEC) << " s\n" ;
}
Compilation message
dna.cpp: In function 'int main()':
dna.cpp:12:47: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
12 | #define inp(name) if(fopen(name, "r")) freopen(name, "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~
dna.cpp:103:5: note: in expansion of macro 'inp'
103 | inp("task.inp");
| ^~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
5200 KB |
Output is correct |
2 |
Correct |
5 ms |
5372 KB |
Output is correct |
3 |
Correct |
4 ms |
5200 KB |
Output is correct |
4 |
Correct |
4 ms |
5200 KB |
Output is correct |
5 |
Correct |
5 ms |
5200 KB |
Output is correct |
6 |
Correct |
4 ms |
4944 KB |
Output is correct |
7 |
Correct |
5 ms |
5200 KB |
Output is correct |
8 |
Correct |
5 ms |
5200 KB |
Output is correct |
9 |
Correct |
4 ms |
5172 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
5200 KB |
Output is correct |
2 |
Correct |
5 ms |
5200 KB |
Output is correct |
3 |
Correct |
6 ms |
5200 KB |
Output is correct |
4 |
Correct |
5 ms |
5200 KB |
Output is correct |
5 |
Correct |
7 ms |
5200 KB |
Output is correct |
6 |
Correct |
5 ms |
5200 KB |
Output is correct |
7 |
Correct |
4 ms |
5200 KB |
Output is correct |
8 |
Correct |
4 ms |
5200 KB |
Output is correct |
9 |
Correct |
4 ms |
5224 KB |
Output is correct |
10 |
Correct |
4 ms |
5200 KB |
Output is correct |
11 |
Correct |
4 ms |
5200 KB |
Output is correct |
12 |
Correct |
4 ms |
4944 KB |
Output is correct |
13 |
Correct |
4 ms |
5200 KB |
Output is correct |
14 |
Correct |
5 ms |
5200 KB |
Output is correct |
15 |
Correct |
4 ms |
5200 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
36 ms |
12880 KB |
Output is correct |
2 |
Correct |
24 ms |
6736 KB |
Output is correct |
3 |
Correct |
66 ms |
13900 KB |
Output is correct |
4 |
Correct |
43 ms |
13648 KB |
Output is correct |
5 |
Correct |
58 ms |
13792 KB |
Output is correct |
6 |
Correct |
23 ms |
13708 KB |
Output is correct |
7 |
Correct |
22 ms |
13648 KB |
Output is correct |
8 |
Correct |
49 ms |
14152 KB |
Output is correct |
9 |
Correct |
50 ms |
14124 KB |
Output is correct |
10 |
Correct |
46 ms |
13792 KB |
Output is correct |
11 |
Correct |
5 ms |
5368 KB |
Output is correct |
12 |
Correct |
4 ms |
5200 KB |
Output is correct |
13 |
Correct |
4 ms |
5200 KB |
Output is correct |
14 |
Correct |
4 ms |
5296 KB |
Output is correct |
15 |
Correct |
5 ms |
5200 KB |
Output is correct |
16 |
Correct |
6 ms |
5200 KB |
Output is correct |
17 |
Correct |
4 ms |
5200 KB |
Output is correct |
18 |
Correct |
5 ms |
5096 KB |
Output is correct |
19 |
Correct |
4 ms |
5200 KB |
Output is correct |
20 |
Correct |
3 ms |
5200 KB |
Output is correct |
21 |
Correct |
4 ms |
5236 KB |
Output is correct |
22 |
Correct |
5 ms |
4944 KB |
Output is correct |
23 |
Correct |
4 ms |
5200 KB |
Output is correct |
24 |
Correct |
4 ms |
5312 KB |
Output is correct |
25 |
Correct |
4 ms |
5200 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
48 ms |
14472 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |