This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define foru(i, l, r) for(int i = l; i <= r; i++)
#define ford(i, r, l) for(int i = r; i >= l; i--)
#define __TIME (1.0 * clock() / CLOCKS_PER_SEC)
#define hashR(i,j) r[i*k+j]
#define hashU(i,j) u[i*k+j]
typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef pair<ii, ii> iiii;
const int N = 1e6 + 5;
const int oo = 1e9, mod = 1e9 + 7;
int r[N], u[N], filled[N], cur[N];
int n, m, k;
vector<ii> reqs[N];
int ind[N];
void process() {
cin >> n >> k;
foru(i, 0, n-1) {
foru(j, 0, k-1) {
cin >> hashR(i, j);
reqs[j].pb({hashR(i, j), i});
}
}
foru(i, 0, k-1) sort(reqs[i].begin() + 1, reqs[i].end());
foru(i, 0, n-1) {
foru(j, 0, k-1) {
cin >> hashU(i, j);
}
}
int ans = 0;
vector<int> nex;
bool can = 1;
while (can) {
can = 0;
foru(j, 0, k-1) {
while (ind[j] <= n && reqs[j][ind[j]].fi <= cur[j]) {
filled[reqs[j][ind[j]].se]++;
if (filled[reqs[j][ind[j]].se] == k) {
foru(jj, 0, k-1) {
cur[jj] += hashU(reqs[j][ind[j]].se, jj);
}
ans++;
can = 1;
}
ind[j]++;
}
}
}
cout << ans;
return;
}
signed main() {
cin.tie(0)->sync_with_stdio(false);
//freopen(".inp", "r", stdin);
//freopen(".out", "w", stdout);
process();
cerr << "Time elapsed: " << __TIME << " s.\n";
return 0;
}
/*
Xét các trường hợp đặc biệt
Kiểm tra lại input/output
Cố gắng trâu
Lật ngược bài toán
Keep calm and get VOI
Flow:
*/
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