#include <cstdio> #include <vector> #include <algorithm> using namespace std; const int N = 500000 + 5; int nextInt() { int n; scanf("%d", &n); return n; } struct Catfish { long long m; int pos; bool operator<(const Catfish &oth) const { if (m != oth.m) return m < oth.m; return pos < oth.pos; } }; vector<Catfish> myData; char res[N]; bool check(int pos, int n) { long long sum = myData[pos].m; for (int i = 0; i < n; ++i) { if (i == pos) continue; if (sum <= myData[i].m) return false; sum += myData[i].m; } return true; } void solve() { int n = myData.size(); sort(myData.begin(), myData.end()); if (myData[0].m == myData.back().m) { // none for (int i = 0; i < n; ++i) res[i] = 'N'; return; } int a = 0; int b = n - 1; while (a + 1 < b) { int c = (a + b) / 2; if (check(c, n)) b = c; else a = c; } for (int i = 0; i < b; ++i) res[myData[i].pos] = 'N'; for (int i = b; i < n; ++i) res[myData[i].pos] = 'T'; } int main() { int n = nextInt(); myData.resize(n); for (int i = 0; i < n; ++i) myData[i] = { nextInt(), i }; res[n] = 0; solve(); printf("%s\n", res); 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 | #include <cstdio> #include <vector> #include <algorithm> using namespace std; const int N = 500000 + 5; int nextInt() { int n; scanf("%d", &n); return n; } struct Catfish { long long m; int pos; bool operator<(const Catfish &oth) const { if (m != oth.m) return m < oth.m; return pos < oth.pos; } }; vector<Catfish> myData; char res[N]; bool check(int pos, int n) { long long sum = myData[pos].m; for (int i = 0; i < n; ++i) { if (i == pos) continue; if (sum <= myData[i].m) return false; sum += myData[i].m; } return true; } void solve() { int n = myData.size(); sort(myData.begin(), myData.end()); if (myData[0].m == myData.back().m) { // none for (int i = 0; i < n; ++i) res[i] = 'N'; return; } int a = 0; int b = n - 1; while (a + 1 < b) { int c = (a + b) / 2; if (check(c, n)) b = c; else a = c; } for (int i = 0; i < b; ++i) res[myData[i].pos] = 'N'; for (int i = b; i < n; ++i) res[myData[i].pos] = 'T'; } int main() { int n = nextInt(); myData.resize(n); for (int i = 0; i < n; ++i) myData[i] = { nextInt(), i }; res[n] = 0; solve(); printf("%s\n", res); return 0; } |