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Submission #1114502

# Submission time Handle Problem Language Result Execution time Memory
1114502 2024-11-19T06:33:51 Z stdfloat Intergalactic ship (IZhO19_xorsum) C++17
17 / 100
 934 ms 262144 KB 
#include <bits/stdc++.h>
using namespace std;

using ll = long long;

const int md = (int)1e9 + 7;

int main() {
	ios::sync_with_stdio(false); cin.tie(nullptr);

	int n;
	cin >> n;

	vector<int> a(n + 1);
	for (int i = 1; i <= n; i++)
		cin >> a[i];

	int q;
	cin >> q;

	vector<int> l(q + 1), r(q + 1), x(q + 1);
	for (int i = 1; i <= q; i++)
		cin >> l[i] >> r[i] >> x[i];

	int ans = 0;
	vector<int> v[1 << q];
	v[0] = a;
	for (int mk = 0; mk < 1 << q; mk++) {
		for (int i = 1; i <= q; i++) {
			if ((mk >> (i - 1)) & 1) {
				v[mk] = v[mk ^ (1 << (i - 1))];
				for (int j = l[i]; j <= r[i]; j++)
					v[mk][j] ^= x[i];
			
				break;
			}
		}

		vector<int> p(n + 1);
		for (int i = 1; i <= n; i++)
			p[i] = p[i - 1] + v[mk][i];

		int sm = 0, sms = 0;
		for (int i = 1; i <= n; i++) {
			int x = (ll)p[i] * p[i] % md;

			ans = (ans + (((ll)i * x % md - (ll)p[i] * sm % md + md) % md + sms) % md) % md;

			sms = (sms + x) % md;
			sm = (sm + (p[i] << 1)) % md;
		}
	}

	cout << ans;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 364 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 3 ms 848 KB Output is correct
7 Correct 2 ms 848 KB Output is correct
8 Correct 2 ms 848 KB Output is correct

Subtask #3
0 / 6.0

# Verdict Execution time Memory Grader output
1 Incorrect 12 ms 1616 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 934 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #5
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 544 ms 172720 KB Output is correct
2 Correct 545 ms 172736 KB Output is correct
3 Correct 537 ms 172616 KB Output is correct

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 544 ms 172720 KB Output is correct
2 Correct 545 ms 172736 KB Output is correct
3 Correct 537 ms 172616 KB Output is correct
4 Incorrect 2 ms 336 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #7
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 3 ms 848 KB Output is correct
7 Correct 2 ms 848 KB Output is correct
8 Correct 2 ms 848 KB Output is correct
9 Correct 544 ms 172720 KB Output is correct
10 Correct 545 ms 172736 KB Output is correct
11 Correct 537 ms 172616 KB Output is correct
12 Incorrect 8 ms 2128 KB Output isn't correct
13 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 3 ms 848 KB Output is correct
7 Correct 2 ms 848 KB Output is correct
8 Correct 2 ms 848 KB Output is correct
9 Correct 544 ms 172720 KB Output is correct
10 Correct 545 ms 172736 KB Output is correct
11 Correct 537 ms 172616 KB Output is correct
12 Incorrect 2 ms 336 KB Output isn't correct
13 Halted 0 ms 0 KB -

Subtask #9
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 3 ms 848 KB Output is correct
7 Correct 2 ms 848 KB Output is correct
8 Correct 2 ms 848 KB Output is correct
9 Incorrect 12 ms 1616 KB Output isn't correct
10 Halted 0 ms 0 KB -