DISNEY2 - Công viên Disneyland (version 2)
Tác giả: ll931110
Ngôn ngữ: C++
//#pragma comment(linker, "/STACK:16777216")
#include <algorithm>
#include <bitset>
#include <cmath>
#include <ctime>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <deque>
#include <fstream>
#include <functional>
#include <iostream>
#include <map>
#include <set>
#include <sstream>
#include <stack>
#include <queue>
#include <vector>
#include <utility>
using namespace std;
int n,L[205][205],f[205][205];
int main()
{
// freopen("disney2.in","r",stdin);
// freopen("disney2.ou","w",stdout);
scanf("%d", &n);
for (int i = 1; i <= n; i++)
for (int j = 1; j <= n; j++) scanf("%d", &L[i][j]);
for (int i = 1; i <= n; i++)
for (int j = 1; j <= n; j++) f[i][j] = 1 << 29;
f[1][1] = 0; f[1][2] = L[1][2];
for (int j = 2; j <= n; j++)
for (int i = 1; i < j; i++)
{
f[i][j + 1] = min(f[i][j + 1],f[i][j] + L[j][j + 1]);
f[j][j + 1] = min(f[j][j + 1],f[i][j] + L[i][j + 1]);
}
int ret = 1 << 29;
for (int i = 1; i <= n; i++) ret = min(ret,f[i][n] + L[i][1] + L[n][1]);
printf("%d\n", ret);
}