#include <iostream>
#include <stdio.h>
#include <algorithm>
#include <vector>
#include <queue>
#include <deque>
#include <set>
#include <string>
#include <map>
#include <math.h>
#include <cmath>
#include <climits>
#include <unordered_map>
#include <unordered_set>
#include <assert.h>
#include <fstream>
#include <bitset>
#include <iomanip>
typedef long long ll;
using namespace std;
int MOD = (int)1e9;
int MAXN = 1e6;
//classes
//global
int main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
//ifstream fin("input.txt");
//ofstream fout("output.txt");
//stop
int n;
cin >> n;
vector<int> vec(n);
for(int& i: vec) cin >> i;
vector<int> dp(1e6+1);
int sum = 0;
for(int& i: vec){
if(dp[i+1] > 0){
dp[i+1]--;
dp[i]++;
}
else{
dp[i]++;
sum++;
}
}
cout << sum << '\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4188 KB |
Output is correct |
2 |
Correct |
1 ms |
4188 KB |
Output is correct |
3 |
Correct |
2 ms |
4188 KB |
Output is correct |
4 |
Correct |
2 ms |
4188 KB |
Output is correct |
5 |
Correct |
44 ms |
7396 KB |
Output is correct |
6 |
Correct |
45 ms |
7760 KB |
Output is correct |
7 |
Correct |
36 ms |
6996 KB |
Output is correct |
8 |
Correct |
35 ms |
7384 KB |
Output is correct |
9 |
Correct |
39 ms |
7248 KB |
Output is correct |
10 |
Correct |
44 ms |
7508 KB |
Output is correct |