#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define rep(a,b) for(int a = 0; a < (b); ++a)
#define all(t) t.begin(), t.end()
#define pb push_back
const int MAXN = 5e5+5, INF = 1e9+50;
const ll INF_L = (ll)1e18+(ll)50000;
int n;
int A[MAXN];
int B[MAXN];
int C[MAXN];
ll S[MAXN];
ll G[MAXN];
vector<ll> stan;
vector<vector<ll>> dp;
void solve()
{
cin >> n;
rep(i,n) cin >> A[i] >> B[i];
rep(i,n) C[i] = A[i]-B[i];
S[0] = C[0];
for(int i = 1; i < n; ++i) S[i] = S[i-1] + C[i];
set<ll> fg;
rep(i,n)
{
if(S[i] >= 0) fg.insert(S[i]);
}
for(auto it = fg.begin(); it != fg.end(); ++it) stan.pb(*it);
dp.assign(n,{});
rep(i,n) dp[i].assign((int)stan.size(),INF_L);
rep(i,n)
{
ll mn = INF_L;
rep(j,(int)stan.size())
{
if(stan[j] < 0)
{
dp[i][j] = INF_L;
continue;
}
dp[i][j] = abs(S[i]-stan[j]);
if(i > 0)
{
mn = min(mn,dp[i-1][j]);
dp[i][j] += mn;
}
}
}
//rep(i,n)
//{
//rep(j,(int)stan.size()) cout << dp[i][j] << ' ';
//cout << '\n';
//}
ll mn = INF_L;
rep(i,(int)stan.size()) mn = min(mn,dp[n-1][i]);
cout << mn << '\n';
}
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
int T = 1;
//cin >> T;
while(T--) solve();
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
2392 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
2392 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
2392 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
2392 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
2392 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
