Submission #493170

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
493170	2021-12-10 09:24:02	Lukap	Lamps (JOI19_lamps)	C++14	4 / 100	396 ms	41488 KiB

lamp

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#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1e6 + 7;
const int INF = 1e9 + 7;
int n;
int a[MAXN], b[MAXN];
int dp[MAXN][4][2];
int dodaj (int i, int x, int y, int fx, int fy) {
    if (a[i] == b[i]) {
        if (x == 3 && fx == 0) return INF;
        if (x >= 1 && x <= 2 && x % 2 != b[i] && fx == 0) return INF;
        if (x == 0 && fx == 1) return INF;
        if (x >= 1 && x <= 2 && x % 2 == b[i] && fx == 1) return INF;
    }
    else {
        if (x >= 1 && x <= 2 && x % 2 != b[i] && fx == 0) return INF;
        if (x == 0 && fx == 0) return INF;
        if (x >= 1 && x <= 2 && x % 2 == b[i] && fx == 1) return INF;
    }
    if (fx == 0) {
        if (x == 3) return INF;
        else if (x != 0 && x != y) return 1;
        else return 0;
    }
 
 
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• Subtask 1: 0 / 6
• Subtask 2: 0 / 41
• Subtask 3: 4 / 4
• Subtask 4: 0 / 49