#include<cstdio>
#include<algorithm>
#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 update(ll pos, ll val, ll node, ll x, ll y)
{
if (pos < x || y < pos)return seg[node];
if (x == y)return seg[node] = val;
ll mid = (x + y) / 2;
return seg[node] = update(pos, val, node * 2, x, mid) + update(pos, val, node * 2 + 1, mid + 1, y);
}
ll update1(ll pos, ll val, ll node, ll x, ll y)
{
if (pos < x || y < pos)return seg1[node];
if (x == y)return seg1[node] = val;
ll mid = (x + y) / 2;
return seg1[node] = update1(pos, val, node * 2, x, mid) + update1(pos, val, node * 2 + 1, mid + 1, y);
}
ll query(ll node, ll x, ll y,ll depth)
{
ll ch = seg[node];
ll mid = (x + y) / 2;
if (ch == 0 || ch == (y - x + 1)) {
return 0;
}
check[depth]++;
return query(node * 2, x, mid, depth + 1) + query(node * 2+1, mid+1, y, depth + 1)+2*(1<<(depth+1));
}
ll query1(ll node, ll x, ll y,ll depth)
{
ll ch = seg1[node];
ll mid = (x + y) / 2;
if (ch == 0 || ch == (y - x + 1)) {
return 0;
}
ll gap = 2 * (1 << (depth + 1));
return query1(node * 2, x, mid, depth + 1) + query1(node * 2 + 1, mid + 1, y, depth + 1) + gap-(gap/(1<<depth)*check[depth]);
}
int main()
{
scanf("%lld %lld", &n, &m);
for (ll i = 1; i <= m; i++)
{
memset(check, 0, sizeof(check));
ll q, w;
scanf("%lld %lld", &q, &w);
if (q == 0) {
cc[w] ^= 1;
update(w, cc[w], 1, 1, (1 << n));
}
else
{
cc1[w] ^= 1;
update1(w, cc1[w], 1, 1, (1 << n));
}
ll dap = query(1, 1, 1 << n, 0);
dap += query1(1, 1, (1 << n), 0);
printf("%lld\n", dap+1);
}
}
Compilation message
collecting.cpp:7:15: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
ll cc[1 << 20 + 1];
~~~^~~
collecting.cpp:8:16: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
ll cc1[1 << 20 + 1];
~~~^~~
collecting.cpp: In function 'int main()':
collecting.cpp:50:3: error: 'memset' was not declared in this scope
memset(check, 0, sizeof(check));
^~~~~~
collecting.cpp:50:3: note: suggested alternative: 'fd_set'
memset(check, 0, sizeof(check));
^~~~~~
fd_set
collecting.cpp:47:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld %lld", &n, &m);
~~~~~^~~~~~~~~~~~~~~~~~~~~
collecting.cpp:52:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld %lld", &q, &w);
~~~~~^~~~~~~~~~~~~~~~~~~~~
