Mascot Song

#include <iostream>

using namespace std;

int A[404040];

int main() {
	int n, q, a, k, x, y;
	cin >> n;
	for (int i = 0; i < n; i++) {
		cin >> a;
		A[i]   = a;
		A[i+n] = a;
	}
	int B = 0;
	for (int i = 0; i < n; i++) {
		if (i == 0 || A[i] <= A[i-1]) B++;
	}
	cin >> q;
	int t = 0;
	for (int i = 0; i < q; i++) {
		cin >> k;
		if (k-1) {
			cin >> x;
			if (A[t] > A[t+n-1]) B--;
			t = (t+x)%n;
			if (A[t] > A[t+n-1]) B++;

		} else {
			cin >> x >> y;
			x += t;
			int l, r;
			if (x > t+1) l = A[x-2] >= A[x-1];
			if (x < n+t) r = A[x-1] >= A[x];
			A[(x-1+n)%(2*n)] = y;
			A[x-1] = y;
			if (x > t+1) B += (int)(A[x-2] >= A[x-1]) - l;
			if (x < n+t) B += (int)(A[x-1] >= A[x]) - r;
		}
//  	for (int i = t; i < n+t; i++) {
//  		cout << A[i] << ' ';
//  	} cout << endl << "\t";
		cout << B << "\n";
	}
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 1

Verdict: ACCEPTED

Test 3

Group: 1

Verdict: ACCEPTED

Test 4

Group: 2

Verdict: ACCEPTED

Test 5

Group: 2

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 3

Verdict: ACCEPTED

Test 8

Group: 3

Verdict: ACCEPTED

Test 9

Group: 3

Verdict: ACCEPTED

Test 10

Group: 3

Verdict: ACCEPTED