putnik

#include <bits/stdc++.h>

#define i64 long long
#define u64 unsigned long long
#define i32 int
#define u32 unsigned int

#define pii pair<int, int>
#define pll pair<long long, long long>

#define ld long double
#define defmod 1000000007

#define mati64(a,b) vector<vector<i64>>(a, vector<i64>(b, 0));
using namespace std;

int n;
int v[1505][1505];
i64 d[1505][1505];
bool d1[1505][1505];
i64 hae(int alk, int lop, int cur){
  if(cur == 0)
    return v[alk][lop];
  if(d1[alk][lop])
    return d[alk][lop];
  d1[alk][lop] = 1;
  
  d[alk][lop] = min(v[alk][cur]+hae(cur, lop, cur-1), v[cur][lop]+hae(alk, cur, cur-1));
  //cout << alk << " " << lop << " " << cur << " " << lol << endl;
  return d[alk][lop];
}
int main(){
  cin.sync_with_stdio(0);
  cin.tie(0);

  cin >> n;
  for(int i = 1; i <= n; ++i){
    for(int j = 1; j <= n; ++j)
      cin >> v[i][j];
  }
  cout << hae(0, 0, n) << endl;
  return 0;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED