Submission #1222038

#	Time	Username	Problem	Language	Result	Execution time	Memory
1222038		totoro	Digital Circuit (IOI22_circuit)	C++20	0 / 100	6 ms	1296 KiB

circuit

#include "circuit.h"

#include <numeric>
#include <vector>

int ans;
std::vector<int> a;

void init(int N, int M, std::vector<int> P, std::vector<int> A) {
    ans = M - std::reduce(A.begin(), A.end(), 0);
    a = A;
}

int count_ways(int L, int R) {
    --L, --R;
    for (int i = L; i <= R; ++i) {
        ans -= (a[i] ^= 1) * 2 - 1;
    }
    return ans;
}

• Subtask 1: 0 / 2
• Subtask 2: 0 / 7
• Subtask 3: 0 / 9
• Subtask 4: 0 / 4
• Subtask 5: 0 / 12
• Subtask 6: 0 / 27
• Subtask 7: 0 / 28
• Subtask 8: 0 / 11