#include<cstdio>
#include<vector>
#include<stack>
#include<utility>
using namespace std;
int newIx(int i, int maxIx, int n) {
int shift = n - maxIx;
if (i < shift - 1) {
return maxIx + i + 1;
} else {
return i - shift + 1;
}
}
int main() {
int n;
scanf("%d\n", &n);
int max = 0;
int maxIx = -1;
vector<int> pearls(n);
for (int i = 0; i < n; i++) {
scanf("%d", &pearls[i]);
if (pearls[i] >= max) {
max = pearls[i];
maxIx = i;
}
}
int curr = 0;
int last = 0;
stack<pair<int, int> > found;
for (int i = 0; i < n; i++) {
int ix = newIx(i, maxIx, n);
if (pearls[ix] > last) {
curr++;
while (!found.empty() && found.top().first < curr) {
found.pop();
}
if (!found.empty() && found.top().first == curr) {
}
while (!found.empty() && found.top().first >= curr) {
if (found.top().first == curr) {
if (found.top().second >= pearls[ix]) {
found.pop();
} else {
found.pop();
curr++;
}
} else if (found.top().second <= pearls[ix]) {
curr = found.top().first + 1;
found.pop();
}
}
last = pearls[ix];
} else if (pearls[ix] < last) {
pair<int, int> currRes(curr, last);
found.push(currRes);
curr = 1;
last = pearls[ix];
}
printf("%d\n", curr);
}
return 0;
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | #include<cstdio> #include<vector> #include<stack> #include<utility> using namespace std; int newIx(int i, int maxIx, int n) { int shift = n - maxIx; if (i < shift - 1) { return maxIx + i + 1; } else { return i - shift + 1; } } int main() { int n; scanf("%d\n", &n); int max = 0; int maxIx = -1; vector<int> pearls(n); for (int i = 0; i < n; i++) { scanf("%d", &pearls[i]); if (pearls[i] >= max) { max = pearls[i]; maxIx = i; } } int curr = 0; int last = 0; stack<pair<int, int> > found; for (int i = 0; i < n; i++) { int ix = newIx(i, maxIx, n); if (pearls[ix] > last) { curr++; while (!found.empty() && found.top().first < curr) { found.pop(); } if (!found.empty() && found.top().first == curr) { } while (!found.empty() && found.top().first >= curr) { if (found.top().first == curr) { if (found.top().second >= pearls[ix]) { found.pop(); } else { found.pop(); curr++; } } else if (found.top().second <= pearls[ix]) { curr = found.top().first + 1; found.pop(); } } last = pearls[ix]; } else if (pearls[ix] < last) { pair<int, int> currRes(curr, last); found.push(currRes); curr = 1; last = pearls[ix]; } printf("%d\n", curr); } return 0; } |
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