Submission #24920

#	Time	Username	Problem	Language	Result	Execution time	Memory
24920		kdh9949	케이크 (JOI13_cake)	C++14	0 / 100	1500 ms	12444 KiB

cake

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int n, mn = 2e9, mi;
int a[900010];
ll cans, ans[300010];

void f(int s, int e, int x){
	if(e - s - 1 == n - 1){ ans[s > n ? s - n : s] = cans + a[s]; return; }
	if(x){
		if(a[s] > a[e - 1]){
			cans += a[s];
			f(s - 1, e, 0);
			cans -= a[s];
		}
		if(a[s + 1] < a[e]){
			cans += a[e];
			f(s, e + 1, 0);
			cans -= a[e];
		}
	}
	else{
		if(a[s] > a[e - 1]) f(s - 1, e, 1);
		if(a[s + 1] < a[e]) f(s, e + 1, 1);
	}
}

void g(int s, int e, int x){
	if(e - s - 1 == n) return;
	if(x){
		if(a[s] > a[e]){
			ans[mi] += a[s];
			g(s - 1, e, 0);	
		}
		else{
			ans[mi] += a[e];
			g(s, e + 1, 0);
		}
	}
	else{
		if(a[s] > a[e]) g(s - 1, e, 1);
		else g(s, e + 1, 1);
	}
}

int main(){
	scanf("%d", &n);
	for(int i = 1; i <= n; i++){
		scanf("%d", a + i);
		a[n + i] = a[2 * n + i] = a[i];
		if(a[i] < mn){
			mn = a[i];
			mi = i;
		}
	}
	cans = ans[mi] = mn;
	f(n + mi - 1, n + mi + 1, !(n % 2));
	g(n + mi - 1, n + mi + 1, 0);
	for(int i = 1; i <= n; i++) printf("%lld\n", ans[i]);
}

Compilation message (stderr)

cake.cpp: In function 'int main()':
cake.cpp:48:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^
cake.cpp:50:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", a + i);
                     ^

• Subtask 1: 0 / 10
• Subtask 2: 0 / 90