#include<bits/stdc++.h>
#define taskname "A"
using namespace std;
typedef long long ll;
const int INF = 1e9 + 5;
void add(int& a, int b){
if((a += b) > INF){
a = INF;
}
}
int n, k;
vector<vector<int>>r, u;
namespace sub1{
void solve(){
cout << int(*max_element(r[0].begin(), r[0].end()) == 0);
}
}
namespace sub2{
void solve(){
vector<int>skill(k, 0);
vector<bool>used(n, false);
while(true){
bool flag = true;
for(int i = 0; i < n; i++){
if(!used[i]){
flag = false;
for(int j = 0; j < k; j++){
if(skill[j] < r[i][j]){
flag = true;
break;
}
}
if(!flag){
used[i] = true;
for(int j = 0; j < k; j++){
add(skill[j], u[i][j]);
}
break;
}
}
}
if(flag){
break;
}
}
cout << count(used.begin(), used.end(), true);
}
}
namespace sub34{
void solve(){
vector<vector<pair<int, int>>>p(k);
queue<int>q;
vector<int>skill(n, 0), cnt(n, k);
for(int i = 0; i < n; i++){
bool flag = true;
for(int j = 0; j < k; j++){
p[j].push_back(make_pair(r[i][j], i));
if(r[i][j] > 0){
flag = false;
}
}
if(flag){
q.push(i);
cnt[i] = 0;
}
}
for(int i = 0; i < k; i++){
sort(p[i].begin(), p[i].end(), greater<pair<int, int>>());
}
int ans = 0;
while(!q.empty()){
int i = q.front();
q.pop();
ans++;
for(int j = 0; j < k; j++){
add(skill[j], u[i][j]);
while(!p[j].empty() && p[j].back().first <= skill[j]){
if(--cnt[p[j].back().second] == 0){
q.push(p[j].back().second);
}
p[j].pop_back();
}
}
}
cout << ans;
}
}
int main(){
ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
if(fopen(taskname".inp", "r")){
freopen(taskname".inp", "r", stdin);
}
cin >> n >> k;
r.resize(n, vector<int>(k));
for(int i = 0; i < n; i++){
for(int j = 0; j < k; j++){
cin >> r[i][j];
}
}
u.resize(n, vector<int>(k));
for(int i = 0; i < n; i++){
for(int j = 0; j < k; j++){
cin >> u[i][j];
}
}
if(n == 1){
sub1::solve();
}
else if(max(n, k) <= 100){
sub2::solve();
}
else{
sub34::solve();
}
}
Compilation message (stderr)
Main.cpp: In function 'int main()':
Main.cpp:91:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
91 | freopen(taskname".inp", "r", stdin);
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