judgejudge @ 2019-02-24 07:13:21
#include <iostream>
using namespace std;
int a[101][101];
int f[101][101];
int n,m;
int dp(int s1,int s2){
int i,j;
if(s1>=1&&s1<=n&&s2>=1&&s2<=m){
if(a[s1-1][s2]<a[s1][s2]){
f[s1-1][s2]=max(f[s1-1][s2],f[s1][s2]+1);
dp(s1-1,s2);
}
if(a[s1+1][s2]<a[s1][s2]){
f[s1+1][s2]=max(f[s1+1][s2],f[s1][s2]+1);
dp(s1+1,s2);
}
if(a[s1][s2-1]<a[s1][s2]){
f[s1][s2-1]=max(f[s1][s2-1],f[s1][s2]+1);
dp(s1,s2-1);
}
if(a[s1][s2+1]<a[s1][s2]){
f[s1][s2+1]=max(f[s1][s2+1],f[s1][s2]+1);
dp(s1,s2+1);
}
}
}
int main(){
int i,j,k;
int row,col;
int maxl=0;
cin>>n>>m;
for(i=1;i<=n;i++)
for(j=1;j<=m;j++){
cin>>a[i][j];
if(a[i][j]>maxl){
maxl=a[i][j];
row=i;
col=j;
}
}
maxl=0;
f[row][col]=1;
dp(row,col);
for(i=1;i<=n;i++)
for(j=1;j<=m;j++)
if(maxl<f[i][j])maxl=f[i][j];
cout<<maxl;
return 0;
}
by aminoas @ 2019-02-24 07:31:08
这题数据范围100,感觉用搜索会爆...
by judgejudge @ 2019-02-24 08:07:27
@2018J1605 那怎么修改呢?蒟蒻求助
by aminoas @ 2019-02-24 08:10:51
我也不知道,正在努力中...
by judgejudge @ 2019-02-24 08:14:13
@2018J1605 好吧,谢谢dalao qwq
by Times_New_man @ 2019-03-09 10:13:16
@judgejudge 用记忆化搜索