#include "bits/stdc++.h" using namespace std; #define DEBUG(x) cerr<<#x<<": "< #define vl vector #define vii vector< vector > #define vll vector< vector > #define vs vector #define pii pair #define pis pair #define psi pair #define pll pair template pair operator+(const pair &s, const pair &t) { return pair(s.first + t.first, s.second + t.second); } template pair operator-(const pair &s, const pair &t) { return pair(s.first - t.first, s.second - t.second); } template ostream& operator<<(ostream& os, pair p) { os << "(" << p.first << ", " << p.second << ")"; return os; } #define X first #define Y second #define rep(i,n) for(ll i=0;i<(ll)(n);i++) #define rep1(i,n) for(ll i=1;i<=(ll)(n);i++) #define rrep(i,n) for(ll i=(ll)(n)-1;i>=0;i--) #define rrep1(i,n) for(ll i=(ll)(n);i>0;i--) #define REP(i,a,b) for(ll i=(ll)a;i<(ll)b;i++) #define in(x, a, b) (a <= x && x < b) #define all(c) c.begin(),c.end() template bool chmax(T &a, const T &b) { if (a bool chmin(T &a, const T &b) { if (a>b) { a = b; return 1; } return 0; } #define UNIQUE(v) v.erase(std::unique(v.begin(), v.end()), v.end()); const ll inf = 1000000001; const ll INF = 2e18; const ll MOD = 1000000007; const double pi = 3.14159265358979323846; #define Sp(p) cout<> n >> m; vi ma(m); vi hito(n); vii mem(m); int cnt = 0; rep (i, n) { rep (j, m) { int temp; cin >> temp; if (temp > ma[j]) { ma[j] = temp; rep (k, mem[j].size()) { hito[mem[j][k]] -= 1 << j; if (hito[mem[j][k]] == 0) { cnt--; } } mem[j].clear(); mem[j].push_back(i); if (hito[i] == 0) { cnt++; } hito[i] += 1 << j; } else if (temp == ma[j]) { mem[j].push_back(i); if (hito[i] == 0) { cnt++; } hito[i] += 1 << j; } } cout << cnt << endl; //DEBUG_VEC(hito); } }