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34 lines
796 B
34 lines
796 B
#include <bits/stdc++.h>
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using namespace std;
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const int N = 100005;
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int n, m;
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// 树状数组模板
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typedef long long LL;
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#define lowbit(x) (x & -x)
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int c[N];
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void add(int x, int d) {
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for (int i = x; i < N; i += lowbit(i)) c[i] += d;
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}
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LL sum(int x) {
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LL res = 0;
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for (int i = x; i; i -= lowbit(i)) res += c[i];
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return res;
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}
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int main() {
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scanf("%d%d", &n, &m);
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for (int i = 1; i <= m; i++) {
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int t, x, y;
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scanf("%d", &t);
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if (t == 1) {
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scanf("%d%d", &x, &y);
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add(x, 1), add(y + 1, -1); // 用差分数组+树状数组，模拟区间修改
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} else {
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scanf("%d", &x);
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printf("%d\n", sum(x) % 2); // 单点查询，是否变化
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}
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}
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return 0;
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}
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