Submission #1064560

#	Time	Username	Problem	Language	Result	Execution time	Memory
1064560		beaconmc	Tricks of the Trade (CEOI23_trade)	C++14	5 / 100	217 ms	406428 KiB

trade

#include <bits/stdc++.h>
 
typedef long long ll;
#define FOR(i,x,y) for(ll i=x; i<y; i++)
#define FORNEG(i,x,y) for(ll i=x; i>y; i--)
 
using namespace std;


ll dp[250005][205];

int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	FOR(i,0,250005)FOR(j,0,205) dp[i][j] = -10000000000000000000000;

	ll n,k;
	cin >> n >> k;
	vector<ll> price(n), sell(n);
	FOR(i,0,n) cin >> price[i];
	FOR(i,0,n) cin >> sell[i];
	FOR(i,0,250005) dp[i][0] = 0;

	FOR(i,0,n){
		FOR(j,0,205){
			dp[i+1][j] = max(dp[i+1][j], dp[i][j] - price[i]);
			dp[i+1][j+1] = max(dp[i+1][j+1], dp[i][j] - price[i] + sell[i]);
		}
	}
	ll ans = -10000000000000000000000;


	FOR(i,0,n+1){
	
		ans = max(ans, dp[i][k]);
	}
	cout << ans << endl;







}

Compilation message (stderr)

trade.cpp:15:42: warning: integer constant is too large for its type
   15 |  FOR(i,0,250005)FOR(j,0,205) dp[i][j] = -10000000000000000000000;
      |                                          ^~~~~~~~~~~~~~~~~~~~~~~
trade.cpp:30:12: warning: integer constant is too large for its type
   30 |  ll ans = -10000000000000000000000;
      |            ^~~~~~~~~~~~~~~~~~~~~~~
trade.cpp: In function 'int main()':
trade.cpp:27:17: warning: iteration 204 invokes undefined behavior [-Waggressive-loop-optimizations]
   27 |    dp[i+1][j+1] = max(dp[i+1][j+1], dp[i][j] - price[i] + sell[i]);
      |    ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
trade.cpp:4:33: note: within this loop
    4 | #define FOR(i,x,y) for(ll i=x; i<y; i++)
......
   25 |   FOR(j,0,205){
      |       ~~~~~~~                    
trade.cpp:25:3: note: in expansion of macro 'FOR'
   25 |   FOR(j,0,205){
      |   ^~~

• Subtask 0: 0 / 0
• Subtask 1: 5 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 25
• Subtask 5: 0 / 45