#include <bits/stdc++.h>
#define pb push_back
#define LINE "-----------------\n"
#define ALL(x) x.begin(),x.end()
using namespace std;
int n, m;
vector <int> nums, sorted;
const int N = 1e6 + 5;
const int M = 1e6 + 1;
int cnt[N], nx[N], pv[N];
void print(vector<int>x) {
for (auto el : x) cout << el << " "; cout << '\n';
}
void showList() {
cout << "LIST: ";
int x = nx[0];
while(x != M) {
for (int j = 0; j < cnt[x]; j++) cout << x << ' ';
x = nx[x];
}
cout << '\n';
cout << "TSIL: ";
x = pv[M];
while(x != 0) {
for (int j = 0; j < cnt[x]; j++) cout << x << ' ';
x = pv[x];
}
cout << '\n';
}
signed main() {
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
// freopen("in.txt", "r", stdin);
// freopen("out.txt", "w", stdout);
cin >> n;
for (int i = 0; i < n; i++) {
int x; cin >> x;
cnt[x]++;
nums.pb(x);
sorted.pb(x);
}
sort(ALL(sorted));
nx[0] = sorted[0];
pv[sorted[0]] = 0;
for (int i = 0; i < n - 1; i++) {
if (sorted[i] != sorted[i+1]) {
nx[sorted[i]] = sorted[i+1];
pv[sorted[i+1]] = sorted[i];
}
}
nx[sorted.back()] = M;
pv[M] = sorted.back();
// showList();
int ans = 0;
for (int i = n - 1; i >= 0; i--) {
int j, curCnt = 1;
bool border = 1;
for (j = i-1; j >= 0; j--) {
if (nums[j] == nums[j+1]) {
curCnt++;
continue;
} else {
if (nx[nums[j]] != nums[j+1]) break;
if (!border && curCnt != cnt[nums[j+1]]) break;
cnt[nums[j+1]] -= curCnt;
if (cnt[nums[j+1]] == 0) {
int a = pv[nums[j+1]], b = nx[nums[j+1]];
// cout << "REMOVE: " << nums[j+1] << " " << a << ',' << b << '\n';
nx[a] = b;
pv[b] = a;
}
border = 0;
curCnt = 1;
}
// showList();
}
// cout << LINE;
// for (int k = j+1; k <= i; k++) cout << nums[k] << " \n"[k==i];
cnt[nums[j+1]] -= curCnt;
if (cnt[nums[j+1]] == 0) {
int a = pv[nums[j+1]], b = nx[nums[j+1]];
// cout << "REMOVE: " << nums[j+1] << " " << a << ',' << b << '\n';
nx[a] = b;
pv[b] = a;
}
// showList();
ans++;
i = j+1;
}
cout << ans << '\n';
}
Compilation message
money.cpp: In function 'void print(std::vector<int>)':
money.cpp:12:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
12 | for (auto el : x) cout << el << " "; cout << '\n';
| ^~~
money.cpp:12:39: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
12 | for (auto el : x) cout << el << " "; cout << '\n';
| ^~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
332 KB |
Output is correct |
| 3 |
Correct |
0 ms |
332 KB |
Output is correct |
| 4 |
Correct |
0 ms |
332 KB |
Output is correct |
| 5 |
Correct |
0 ms |
332 KB |
Output is correct |
| 6 |
Correct |
0 ms |
320 KB |
Output is correct |
| 7 |
Correct |
0 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
320 KB |
Output is correct |
| 9 |
Correct |
0 ms |
332 KB |
Output is correct |
| 10 |
Correct |
0 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
332 KB |
Output is correct |
| 12 |
Correct |
0 ms |
332 KB |
Output is correct |
| 13 |
Correct |
0 ms |
332 KB |
Output is correct |
| 14 |
Correct |
0 ms |
332 KB |
Output is correct |
| 15 |
Correct |
0 ms |
332 KB |
Output is correct |
| 16 |
Correct |
0 ms |
332 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
332 KB |
Output is correct |
| 3 |
Correct |
0 ms |
332 KB |
Output is correct |
| 4 |
Correct |
0 ms |
332 KB |
Output is correct |
| 5 |
Correct |
0 ms |
332 KB |
Output is correct |
| 6 |
Correct |
0 ms |
320 KB |
Output is correct |
| 7 |
Correct |
0 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
320 KB |
Output is correct |
| 9 |
Correct |
0 ms |
332 KB |
Output is correct |
| 10 |
Correct |
0 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
332 KB |
Output is correct |
| 12 |
Correct |
0 ms |
332 KB |
Output is correct |
| 13 |
Correct |
0 ms |
332 KB |
Output is correct |
| 14 |
Correct |
0 ms |
332 KB |
Output is correct |
| 15 |
Correct |
0 ms |
332 KB |
Output is correct |
| 16 |
Correct |
0 ms |
332 KB |
Output is correct |
| 17 |
Correct |
1 ms |
332 KB |
Output is correct |
| 18 |
Correct |
0 ms |
332 KB |
Output is correct |
| 19 |
Correct |
0 ms |
332 KB |
Output is correct |
| 20 |
Correct |
0 ms |
332 KB |
Output is correct |
| 21 |
Correct |
0 ms |
332 KB |
Output is correct |
| 22 |
Correct |
0 ms |
332 KB |
Output is correct |
| 23 |
Correct |
1 ms |
328 KB |
Output is correct |
| 24 |
Correct |
1 ms |
332 KB |
Output is correct |
| 25 |
Correct |
1 ms |
460 KB |
Output is correct |
| 26 |
Correct |
0 ms |
460 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
332 KB |
Output is correct |
| 3 |
Correct |
0 ms |
332 KB |
Output is correct |
| 4 |
Correct |
0 ms |
332 KB |
Output is correct |
| 5 |
Correct |
0 ms |
332 KB |
Output is correct |
| 6 |
Correct |
0 ms |
320 KB |
Output is correct |
| 7 |
Correct |
0 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
320 KB |
Output is correct |
| 9 |
Correct |
0 ms |
332 KB |
Output is correct |
| 10 |
Correct |
0 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
332 KB |
Output is correct |
| 12 |
Correct |
0 ms |
332 KB |
Output is correct |
| 13 |
Correct |
0 ms |
332 KB |
Output is correct |
| 14 |
Correct |
0 ms |
332 KB |
Output is correct |
| 15 |
Correct |
0 ms |
332 KB |
Output is correct |
| 16 |
Correct |
0 ms |
332 KB |
Output is correct |
| 17 |
Correct |
1 ms |
332 KB |
Output is correct |
| 18 |
Correct |
0 ms |
332 KB |
Output is correct |
| 19 |
Correct |
0 ms |
332 KB |
Output is correct |
| 20 |
Correct |
0 ms |
332 KB |
Output is correct |
| 21 |
Correct |
0 ms |
332 KB |
Output is correct |
| 22 |
Correct |
0 ms |
332 KB |
Output is correct |
| 23 |
Correct |
1 ms |
328 KB |
Output is correct |
| 24 |
Correct |
1 ms |
332 KB |
Output is correct |
| 25 |
Correct |
1 ms |
460 KB |
Output is correct |
| 26 |
Correct |
0 ms |
460 KB |
Output is correct |
| 27 |
Correct |
1 ms |
332 KB |
Output is correct |
| 28 |
Correct |
0 ms |
332 KB |
Output is correct |
| 29 |
Correct |
1 ms |
332 KB |
Output is correct |
| 30 |
Correct |
0 ms |
332 KB |
Output is correct |
| 31 |
Correct |
0 ms |
332 KB |
Output is correct |
| 32 |
Correct |
1 ms |
332 KB |
Output is correct |
| 33 |
Correct |
1 ms |
332 KB |
Output is correct |
| 34 |
Correct |
0 ms |
332 KB |
Output is correct |
| 35 |
Correct |
0 ms |
332 KB |
Output is correct |
| 36 |
Correct |
1 ms |
316 KB |
Output is correct |
| 37 |
Correct |
1 ms |
1996 KB |
Output is correct |
| 38 |
Correct |
2 ms |
1988 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
332 KB |
Output is correct |
| 3 |
Correct |
0 ms |
332 KB |
Output is correct |
| 4 |
Correct |
0 ms |
332 KB |
Output is correct |
| 5 |
Correct |
0 ms |
332 KB |
Output is correct |
| 6 |
Correct |
0 ms |
320 KB |
Output is correct |
| 7 |
Correct |
0 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
320 KB |
Output is correct |
| 9 |
Correct |
0 ms |
332 KB |
Output is correct |
| 10 |
Correct |
0 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
332 KB |
Output is correct |
| 12 |
Correct |
0 ms |
332 KB |
Output is correct |
| 13 |
Correct |
0 ms |
332 KB |
Output is correct |
| 14 |
Correct |
0 ms |
332 KB |
Output is correct |
| 15 |
Correct |
0 ms |
332 KB |
Output is correct |
| 16 |
Correct |
0 ms |
332 KB |
Output is correct |
| 17 |
Correct |
1 ms |
332 KB |
Output is correct |
| 18 |
Correct |
0 ms |
332 KB |
Output is correct |
| 19 |
Correct |
0 ms |
332 KB |
Output is correct |
| 20 |
Correct |
0 ms |
332 KB |
Output is correct |
| 21 |
Correct |
0 ms |
332 KB |
Output is correct |
| 22 |
Correct |
0 ms |
332 KB |
Output is correct |
| 23 |
Correct |
1 ms |
328 KB |
Output is correct |
| 24 |
Correct |
1 ms |
332 KB |
Output is correct |
| 25 |
Correct |
1 ms |
460 KB |
Output is correct |
| 26 |
Correct |
0 ms |
460 KB |
Output is correct |
| 27 |
Correct |
1 ms |
332 KB |
Output is correct |
| 28 |
Correct |
0 ms |
332 KB |
Output is correct |
| 29 |
Correct |
1 ms |
332 KB |
Output is correct |
| 30 |
Correct |
0 ms |
332 KB |
Output is correct |
| 31 |
Correct |
0 ms |
332 KB |
Output is correct |
| 32 |
Correct |
1 ms |
332 KB |
Output is correct |
| 33 |
Correct |
1 ms |
332 KB |
Output is correct |
| 34 |
Correct |
0 ms |
332 KB |
Output is correct |
| 35 |
Correct |
0 ms |
332 KB |
Output is correct |
| 36 |
Correct |
1 ms |
316 KB |
Output is correct |
| 37 |
Correct |
1 ms |
1996 KB |
Output is correct |
| 38 |
Correct |
2 ms |
1988 KB |
Output is correct |
| 39 |
Correct |
60 ms |
7528 KB |
Output is correct |
| 40 |
Correct |
91 ms |
12108 KB |
Output is correct |
| 41 |
Correct |
47 ms |
6176 KB |
Output is correct |
| 42 |
Correct |
40 ms |
5688 KB |
Output is correct |
| 43 |
Correct |
30 ms |
4180 KB |
Output is correct |
| 44 |
Correct |
117 ms |
15148 KB |
Output is correct |
| 45 |
Correct |
113 ms |
15024 KB |
Output is correct |
| 46 |
Correct |
124 ms |
15364 KB |
Output is correct |
| 47 |
Correct |
115 ms |
15124 KB |
Output is correct |
| 48 |
Correct |
115 ms |
15244 KB |
Output is correct |
| 49 |
Correct |
185 ms |
26784 KB |
Output is correct |
| 50 |
Correct |
176 ms |
26772 KB |
Output is correct |
| 51 |
Correct |
201 ms |
26804 KB |
Output is correct |
| 52 |
Correct |
197 ms |
26876 KB |
Output is correct |
| 53 |
Correct |
208 ms |
26880 KB |
Output is correct |
| 54 |
Correct |
182 ms |
26644 KB |
Output is correct |
| 55 |
Correct |
270 ms |
26844 KB |
Output is correct |
| 56 |
Correct |
273 ms |
26816 KB |
Output is correct |
| 57 |
Correct |
250 ms |
26808 KB |
Output is correct |
| 58 |
Correct |
278 ms |
26776 KB |
Output is correct |
| 59 |
Correct |
278 ms |
26880 KB |
Output is correct |
| 60 |
Correct |
237 ms |
26804 KB |
Output is correct |
| 61 |
Correct |
255 ms |
26772 KB |
Output is correct |
| 62 |
Correct |
264 ms |
26816 KB |
Output is correct |
