Submission #499728

#	Time	Username	Problem	Language	Result	Execution time	Memory
499728		sidon	Friend (IOI14_friend)	C++17	100 / 100	27 ms	1496 KiB

friend

#include "friend.h"
 
int findSample(int n, int c[], int h[], int p[]) {
	for(int i = (p[0]=0)+n; --i; ) {
		if(c[i] < 0) c[i] = 0;
		if(p[i] == 0) c[h[i]] -= c[i], p[0] += c[i];
		if(p[i] == 1) c[h[i]] = c[i] + (c[h[i]] > 0 ? c[h[i]] : 0);
		if(p[i] == 2 && c[i] > c[h[i]]) c[h[i]] = c[i];
	}
	return (c[0] > 0 ? c[0] : 0) + p[0];
}

• Subtask 1: 11 / 11
• Subtask 2: 8 / 8
• Subtask 3: 8 / 8
• Subtask 4: 19 / 19
• Subtask 5: 23 / 23
• Subtask 6: 31 / 31