#include "bits/stdc++.h"
using namespace std;
#define int long long
#define double long double
const int MAXN = 1e5 + 10;
const int MOD = 1e9 + 7;
mt19937_64 rng((int)std::chrono::steady_clock::now().time_since_epoch().count());
int rnd(int x, int y) {
int u = uniform_int_distribution<int>(x, y)(rng); return u;
}
int bm(int b, int p) {
if(p==0) return 1 % MOD;
int r = bm(b, p >> 1);
if(p&1) return (((r*r) % MOD) * b) % MOD;
return (r*r) % MOD;
}
int inv(int b) {
return bm(b, MOD-2);
}
int fastlog(int x) {
return (x == 0 ? -1 : 64 - __builtin_clzll(x) - 1);
}
void printcase(int i) { cout << "Case #" << i << ": "; }
bool cmp(pair<int, int> x, pair<int, int> y) {
return x.second < y.second;
}
void solve(int tc) {
int n, k;
cin >> n >> k;
pair<int, int> p[n+1];
for(int i=1; i<=n; i++) cin >> p[i].first >> p[i].second;
sort(p+1, p+1+n, cmp);
int m = ceil(k*k*1.0/n/n) * 20;
int dp[n+1][n+1][m+1];
for(int i=1; i<=n; i++) {
for(int j=1; j<=m; j++) {
dp[0][i][j] = 1e18;
}
}
dp[0][0][1] = 0;
for(int i=2; i<=m; i++) dp[0][0][i] = 1e18;
for(int i=1; i<=n; i++) {
for(int j=0; j<i; j++) {
for(int l=1; l<=m; l++) {
dp[i][j][l] = 1e18;
}
}
int opt[m+1];
for(int j=1; j<=m; j++) opt[j] = 1e18;
for(int j=0; j<i; j++) {
int res[m+1];
int p1 = 1, p2 = 1;
for(int l=1; l<=m; l++) {
if(dp[i-1][j][p1] < opt[p2]) {
res[l] = dp[i-1][j][p1++];
}
else {
res[l] = opt[p2++];
}
}
for(int l=1; l<=m; l++) {
opt[l] = res[l];
}
}
for(int j=i; j<=n; j++) {
if(p[j].second >= i) {
for(int l=1; l<=m; l++) dp[i][j][l] = opt[l] + p[j].first;
}
else {
for(int l=1; l<=m; l++) dp[i][j][l] = 1e18;
}
int res[m+1];
int p1 = 1, p2 = 1;
for(int l=1; l<=m; l++) {
if(dp[i-1][j][p1] < opt[p2]) {
res[l] = dp[i-1][j][p1++];
}
else {
res[l] = opt[p2++];
}
}
for(int l=1; l<=m; l++) {
opt[l] = res[l];
}
}
}
vector<pair<int, int> > sol;
for(int i=n; i>=0; i--) {
vector<int> v;
for(int j=i; j<=n; j++) {
for(int l=1; l<=m; l++) {
if(dp[i][j][l] <= 1e13) v.push_back(dp[i][j][l]);
}
}
sort(v.begin(), v.end());
for(int x: v) {
sol.push_back({i, x});
}
}
for(int i=0; i<k; i++) {
cout << sol[i].first << ' ' << sol[i].second << '\n';
}
}
int32_t main() {
ios::sync_with_stdio(0); cin.tie(0);
int t = 1; //cin >> t;
for(int i=1; i<=t; i++) solve(i);
}
// 勿忘初衷
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
190 ms |
524288 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
190 ms |
524288 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
201 ms |
524288 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
173 ms |
524288 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
7 ms |
4092 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
190 ms |
524288 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |