#include <bits/stdc++.h> using namespace std; using ll = long long; int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); int n; cin >> n; vector<pair<int, int>> m(n); for(int i = 0; i < n; i++) { cin >> m[i].first; m[i].second = i; } sort(m.begin(), m.end()); vector<int> idx(n); for(int i = 0; i < n; i++) { idx[m[i].second] = i; } unordered_map<int, int> occ; ll sum = 0; int br = 1e9; int prev = -1; int current = -1; bool first = true; int types = 0; for(int i = 0; i < n; i++) { if(current != m[i].first) { prev = current; current = m[i].first; } else if(br == i - 1 && first) { br = i; } if(first && prev != -1) { first = false; sum += occ[prev] * prev; br = i; } if(current >= sum && !first) { br = i; } if(!first) { sum += current; } if(current >= sum && prev != -1 && prev != current) { br = i; } types += (occ[current]++ == 0); } for(int i = 0; i < n; i++) { cout << "NT"[ br <= idx[i] || (i > 0 && idx[i] == n - 1 && types > 1) ]; } cout << "\n"; 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 | #include <bits/stdc++.h> using namespace std; using ll = long long; int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); int n; cin >> n; vector<pair<int, int>> m(n); for(int i = 0; i < n; i++) { cin >> m[i].first; m[i].second = i; } sort(m.begin(), m.end()); vector<int> idx(n); for(int i = 0; i < n; i++) { idx[m[i].second] = i; } unordered_map<int, int> occ; ll sum = 0; int br = 1e9; int prev = -1; int current = -1; bool first = true; int types = 0; for(int i = 0; i < n; i++) { if(current != m[i].first) { prev = current; current = m[i].first; } else if(br == i - 1 && first) { br = i; } if(first && prev != -1) { first = false; sum += occ[prev] * prev; br = i; } if(current >= sum && !first) { br = i; } if(!first) { sum += current; } if(current >= sum && prev != -1 && prev != current) { br = i; } types += (occ[current]++ == 0); } for(int i = 0; i < n; i++) { cout << "NT"[ br <= idx[i] || (i > 0 && idx[i] == n - 1 && types > 1) ]; } cout << "\n"; return 0; } |