Swapping given variables

-

 

Comments

Post a Comment

Popular posts from this blog

CodeChef::CSUB

-
  #include   <bits/stdc++.h> using  namespace   std  ; #define   boost   ios :: sync_with_stdio ( 0 ); cin . tie ( 0 ) #define   ll  long long  int   main  (){      boost  ;      ll   t  ;      cin   >>   t  ;      while  ( t --)     {        ll   n  ;        cin   >>   n  ;        string   seq  ;        cin   >>   seq  ;        ll   count { 0 };        for  ( int   i  =  0 ;  i  <  seq . size ();  i ++){            if  ( seq [ i ]  ==...
Read more

Atcoder Educational Dp contest :: C vacation

-
  #include <bits/stdc++.h> using namespace std ; #define ll long long int const inf = 1e9 + 5 ; int const mod = 1e9 + 7 ; int main (){ ll n ; cin >> n ; ll a[n] , b[n] , c[n] ; for ( ll i= 0 ; i<n ; i++)cin >> a[i] >> b[i] >> c[i] ; ll dp[n][ 3 ] ; //base case dp[ 0 ][ 0 ] = a[ 0 ] ; dp[ 0 ][ 1 ] = b[ 0 ] ; dp[ 0 ][ 2 ] = c[ 0 ] ; //recursive case for ( ll i= 1 ; i<n ; i++){ dp[i][ 0 ] = a[i] + max(dp[i- 1 ][ 1 ] , dp[i- 1 ][ 2 ]) ; dp[i][ 1 ] = b[i] + max(dp[i- 1 ][ 0 ] , dp[i- 1 ][ 2 ]) ; dp[i][ 2 ] = c[i] + max(dp[i- 1 ][ 0 ] , dp[i- 1 ][ 1 ]) ; } cout << max({dp[n- 1 ][ 0 ] , dp[n- 1 ][ 1 ] , dp[n- 1 ][ 2 ]}) ; return 0 ; }
Read more

How Recursion Works?

-
  #include <bits/stdc++.h> using namespace std ; int fact ( int n){ //1st step Base Case if (n== 0 ){ return 1 ; } int smallans = fact(n- 1 ) ; // 2nd step Assumption Recursive Case int ans = n*smallans ; //3rd step Calculation return ans ; } int main (){ int n ; cin >> n ; cout << fact(n) << ' \n ' ; return 0 ; }
Read more