Submission #993862

#TimeUsernameProblemLanguageResultExecution timeMemory
993862onbertBroken Device (JOI17_broken_device)C++17
85 / 100
27 ms3040 KiB
#include "Annalib.h" #include <bits/stdc++.h> using namespace std; #define int long long const int m = 37; const int R[m+1] = {0, 1, 2, 1, 2, 1, 2, 1, 1, 0, 0, 1, 0, 2, 0, 1, 0, 0, 2, 2, 1, 0, 2, 0, 1, 0, 0, 0, 0, 2, 2, 1, 2, 1, 1, 0, 1, 0}; void Anna(int32_t n, long long X, int32_t k, int32_t p[]){ int a[n]; for (int i=0;i<n;i++) a[i] = 1; for (int i=0;i<k;i++) a[p[i]] = 0; // for (int i=0;i<n;i++) if (a[i ^ 1]==0) a[i] = 0; int cur = 0; for (int i=0;i<n && cur<=m;i+=2) { int val = (X + R[cur]) % 3; int x = 1, y = 1; if (val==0) x = 0, y = 1; if (val==1) x = 1, y = 0; if ((!a[i] && x) || (!a[i+1] && y)) { a[i] = 0, a[i+1] = 0; continue; } a[i] = x, a[i+1] = y; X /= 3; cur++; } // for (int i=0;i<n;i++) cout << a[i]; cout << endl; for (int i=0;i<n;i++) Set(i, (int32_t)a[i]); }
#include "Brunolib.h" #include <bits/stdc++.h> using namespace std; #define int long long const int m = 37; const int R[m+1] = {0, 1, 2, 1, 2, 1, 2, 1, 1, 0, 0, 1, 0, 2, 0, 1, 0, 0, 2, 2, 1, 0, 2, 0, 1, 0, 0, 0, 0, 2, 2, 1, 2, 1, 1, 0, 1, 0}; long long Bruno(int32_t n, int32_t a[]){ int pwr[m+1]; pwr[0] = 1; for (int i=1;i<=m;i++) pwr[i] = pwr[i-1] * 3; int x = 0; int cur = 0; for (int i=0;i<n && cur<=m;i+=2) if (a[i] || a[i+1]) { int bit = 0; if (a[i]==1 && a[i+1]==0) bit = 1; if (a[i]==1 && a[i+1]==1) bit = 2; bit = (bit - R[cur] + 3) % 3; x += bit * pwr[cur]; cur++; } // cout << endl; return x; }
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