Submission #388020

#	Time	Username	Problem	Language	Result	Execution time	Memory
388020		Supersonic	Comparing Plants (IOI20_plants)	C++17	5 / 100	758 ms	11352 KiB

plants

#include "plants.h"
#include <bits/stdc++.h>
using namespace std;
int a[400001];int b[400001];int n;
void init(int k, std::vector<int> r) {
	if(k==2){
		n=r.size();
		for(int i=0;i<n;i++)r.push_back(r[i]);
		for(int i=0;i<2*n;i++)b[i]=r[i];
		a[0]=0;
		for(int i=1;i<2*n;i++){if(r[i]==r[i-1])a[i]=a[i-1];else a[i]=a[i-1]+1;}
	}
	return;
}

int compare_plants(int x, int y) {
	//cerr<<x<<' '<<y<<endl;
	if(x>y)y+=n;y--;
	if(a[x]==a[y]){
		//cerr<<b.size()<<endl;
		if(b[x]==0)return 1;
		else return -1;
	}
	cerr<<x<<' '<<y<<endl;
	y++;y%=n;if(y>x)x+=n;x--;

	if(a[x]==a[y]){
		//cerr<<b.size()<<endl;
		if(b[y]==0)return -1;
		else return 1;
	}
	return 0;
}

Compilation message (stderr)

plants.cpp: In function 'int compare_plants(int, int)':
plants.cpp:18:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   18 |  if(x>y)y+=n;y--;
      |  ^~
plants.cpp:18:14: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   18 |  if(x>y)y+=n;y--;
      |              ^

• Subtask 1: 5 / 5
• Subtask 2: 0 / 14
• Subtask 3: 0 / 13
• Subtask 4: 0 / 17
• Subtask 5: 0 / 11
• Subtask 6: 0 / 15
• Subtask 7: 0 / 25