Submission #102796

#	Time	Username	Problem	Language	Result	Execution time	Memory
102796		njchung99	즐거운 사진 수집 (JOI13_collecting)	C++14	100 / 100	3350 ms	94280 KiB

collecting

#include<cstdio>
#include<algorithm>
#include<cstring>
#define ll long long
using namespace std;
ll seg[1 << 22];
ll seg1[1 << 22];
ll cc[1 << 20 + 1];
ll cc1[1 << 20 + 1];
ll n, m;
ll check[22];
ll check1[22];
ll dap;
ll update(ll pos, ll val, ll node, ll x, ll y,ll depth)
{
	if (pos < x || y < pos)return seg[node];
	if (x == y)return seg[node] = val;
	ll mid = (x + y) / 2;
	ll gap = 2 * (1 << (depth + 1));
	if (seg[node] == 0 || seg[node] == y - x + 1) {
		check[depth]++;
		dap += (gap - gap / (1 << depth)*check1[depth]);
	}
	seg[node] = update(pos, val, node * 2, x, mid,depth+1) + update(pos, val, node * 2 + 1, mid + 1, y,depth+1);
	if (seg[node] == 0 || seg[node] == y - x + 1)
	{
		check[depth]--;
		dap -= (gap - gap / (1 << depth)*check1[depth]);
	}
	return seg[node];
}
ll update1(ll pos, ll val, ll node, ll x, ll y,ll depth)
{
	if (pos < x || y < pos)return seg1[node];
	if (x == y)return seg1[node] = val;
	ll mid = (x + y) / 2;
	ll gap = 2 * (1 << (depth + 1));
	if (seg1[node] == 0 || seg1[node] == y - x + 1) {
		check1[depth]++;
		dap += (gap - gap / (1 << depth)*check[depth]);
	}
	seg1[node] = update1(pos, val, node * 2, x, mid, depth + 1) + update1(pos, val, node * 2 + 1, mid + 1, y, depth + 1);
	if (seg1[node] == 0 || seg1[node] == y - x + 1)
	{
		check1[depth]--;
		dap -= (gap - gap / (1 << depth)*check[depth]);
	}
	return seg1[node];
}
int main()
{
	scanf("%lld %lld", &n, &m);
	for (ll i = 1; i <= m; i++)
	{
		ll q, w;
		scanf("%lld %lld", &q, &w);
		if (q == 0) {
			cc[w] ^= 1;
			update(w, cc[w], 1, 1, (1 << n),0);
		}
		else
		{
			cc1[w] ^= 1;
			update1(w, cc1[w], 1, 1, (1 << n),0);
		}
		printf("%lld\n", dap+1);
	}
}

Compilation message (stderr)

collecting.cpp:8:15: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
 ll cc[1 << 20 + 1];
            ~~~^~~
collecting.cpp:9:16: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
 ll cc1[1 << 20 + 1];
             ~~~^~~
collecting.cpp: In function 'int main()':
collecting.cpp:52:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld %lld", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~
collecting.cpp:56:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld", &q, &w);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 70 / 70