#include <stdio.h> #include <vector> #include <map> #include <unordered_set> #include <queue> #include <set> #include <unordered_map> #include <math.h> #include <limits.h> #include <algorithm> #include <functional> #include <iterator> #include <algorithm> #include <string> #include <iostream> using namespace std; #define pb push_back #define mp make_pair typedef long long ll; typedef unsigned long long ull; using namespace std; //ora.in3 -> 2137 int main() { ios_base::sync_with_stdio(0); cin.tie(NULL); int t; cin >> t; while (t --> 0) { int n, ai; cin >> n; vector<int> nums; for (int i=0; i<n; ++i) { cin >> ai; nums.pb(ai); } int size = nums.size(); int inc = 1; int half = (n+1) / 2; if (n % 2 == 1) inc = 0; int left=0, right=size-1; int lc=0, rc=0; int answer = 2 * size + 1, count = 0, maxc=1; for (int s=n; s>=1; s--) { while (nums[left] < half) { left++; lc++; } while (nums[right] < half) { right--; rc++; } int val = s + lc + rc; //cout << "ANS " << val << " ===> " << min(maxc, val - size + 1) << endl; //cout << "DBG " << lc << ":" << rc << " <- " << s << endl; if (val >= size) { int mm = min(lc, rc); count += min(mm+1, min(maxc, val - size + 1)); } maxc++; if (inc == 1) { inc = 0; half++; } else { inc = 1; } } cout << answer << " " << count << endl; } 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 77 78 79 80 81 82 | #include <stdio.h> #include <vector> #include <map> #include <unordered_set> #include <queue> #include <set> #include <unordered_map> #include <math.h> #include <limits.h> #include <algorithm> #include <functional> #include <iterator> #include <algorithm> #include <string> #include <iostream> using namespace std; #define pb push_back #define mp make_pair typedef long long ll; typedef unsigned long long ull; using namespace std; //ora.in3 -> 2137 int main() { ios_base::sync_with_stdio(0); cin.tie(NULL); int t; cin >> t; while (t --> 0) { int n, ai; cin >> n; vector<int> nums; for (int i=0; i<n; ++i) { cin >> ai; nums.pb(ai); } int size = nums.size(); int inc = 1; int half = (n+1) / 2; if (n % 2 == 1) inc = 0; int left=0, right=size-1; int lc=0, rc=0; int answer = 2 * size + 1, count = 0, maxc=1; for (int s=n; s>=1; s--) { while (nums[left] < half) { left++; lc++; } while (nums[right] < half) { right--; rc++; } int val = s + lc + rc; //cout << "ANS " << val << " ===> " << min(maxc, val - size + 1) << endl; //cout << "DBG " << lc << ":" << rc << " <- " << s << endl; if (val >= size) { int mm = min(lc, rc); count += min(mm+1, min(maxc, val - size + 1)); } maxc++; if (inc == 1) { inc = 0; half++; } else { inc = 1; } } cout << answer << " " << count << endl; } return 0; } |