Submission #93941

#TimeUsernameProblemLanguageResultExecution timeMemory
93941ahmedie404Pohlepko (COCI16_pohlepko)C++14
35 / 80
1084 ms26224 KiB
#include <iostream> using namespace std; int n, m; string a[2000+9]; bool vis[2000+9][2000+9]; bool check(int i, int j){ return i >= 0 && j >= 0 && i < n && j < m; } string finds(int i, int j, string s){ string sol="zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz"; s += a[i][j]; if( i == n-1 && j == m-1 ) return s; if(check(i, j+1) && string(s+a[i][j+1]) < string(s+a[i+1][j]) && !vis[i][j+1]){ sol = min(string(finds(i, j+1, s)), sol); vis[i][j+1]=true; } else if(check(i+1, j) && string(s+a[i][j+1]) < string(s+a[i+1][j])){ sol = min(string(finds(i+1, j, s)), sol); vis[i][j+1]=true; } else{ if(check(i+1, j) && !vis[i+1][j]){ sol = min(string(finds(i+1, j, s)), sol); vis[i+1][j]=true; } if(check(i, j+1) && !vis[i][j+1]){ sol = min(string(finds(i, j+1, s)), sol); vis[i][j+1]=true; } } return sol; } int main(){ cin >> n >> m; for(int i=0;i<n;i++) cin >> a[i]; cout << finds(0, 0, "") << endl; return 0; }
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