#include using namespace std; int main(){ int n, m; cin >> n >> m; int mm[10] = {}; int kanosei[100010] = {}; int ans = 0; queue kn[10]; for(int i = 0;i < n;i++){ int r; for(int j = 0;j < m;j++){ cin >> r; if(mm[j] < r){ while(!kn[j].empty()){ int t = kn[j].front(); kn[j].pop(); kanosei[t]--; if(kanosei[t] == 0){ ans--; } } mm[j] = r; } if(mm[j] == r){ if(kanosei[i] == 0){ ans++; } kanosei[i]++; kn[j].push(i); } } cout << ans << endl; } return 0; }