#include #include #include #include #include #include #include using namespace std; using ll = long long; int main() { ios::sync_with_stdio(false); cin.tie(0); int n, m; cin >> n >> m; int s[10] = {}; vector t(n), v[10]; for (int j = 0; j < m; j++) { v[j] = vector(); } int x = 0; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { int r; cin >> r; if (r > s[j]) { for (auto& i1 : v[j]) { t[i1] ^= 1 << j; if (t[i1] == 0) x--; } v[j].clear(); if (t[i] == 0) x++; s[j] = r; t[i] ^= 1 << j; v[j].push_back(i); } else if (r == s[j]) { if (t[i] == 0) x++; t[i] ^= 1 << j; v[j].push_back(i); } } cout << x << '\n'; } return 0; }