Submission #600758

#TimeUsernameProblemLanguageResultExecution timeMemory
600758MadokaMagicaFanBit Shift Registers (IOI21_registers)C++17
Compilation error
0 ms0 KiB
#include "bits/stdc++.h" using namespace std; using ll = long long; const ll inf = 1e9; const int md1 = 1e9+7; const int md2 = 998244353; #define sz(v) ((int)v.size()) #define pb push_back #define pry cout << "YES\n" #define prn cout << "NO\n" #define endl '\n' #define fst first #define scn second #define clear for (i = 0; i < B; ++i) { v[i] = 0; } const int D = 99; // del extra const int L = 98; // last bit const int S = 97; // for sum const int N = 96; // min const int X = 95; // max const int F = 94; // diff const int T = 93; // temporary /* #define ONPC */ const int B = 2000; const int M = 100; void append_move(int t, int y); void append_store(int t, vector<bool> v); void append_and(int t, int x, int y); void append_or(int t, int x, int y); void append_xor(int t, int x, int y); void append_not(int t, int x); void append_left(int t, int x, int p); void append_right(int t, int x, int p); void append_add(int t, int x, int y); void fminmax(int a, int b, int k) { append_not(F, b); append_and(F ,F, D); append_add(F ,F, S); append_add(F ,F, a); append_and(F ,F, L); /* TODO improve */ for (int j = 0; j < k; ++j) { append_right(N, F, 1); append_or(F,F,N); } append_and(X, F, a); append_and(N, F, b); append_not(F,F); append_and(T, F, a); append_or(N, N, T); append_and(T, F, b); append_or(X, X, T); return; } void construct_instructions(int s, int n, int k, int q) { int i, j, l; assert(!s); vector<bool> v(B, 0); if (n&1) { for (i = 0; i < k; ++i) v[n*k + i] = 1; append_store(1,v); append_or(0,0,1); ++n; } clear; for (i = 0; i < n; ++i) { if (i&1) continue; for (j = 0; j < k; ++j) v[i*k+j] = 1; } append_store(D,v); clear; for (i = 0; i < n; ++i) { if (i&1) continue; v[i*k+k] = 1; } append_store(L,v); clear; for (i = 0; i < n; ++i) { if (i&1) continue; v[i*k] = 1; } append_store(S,v); clear; append_and(1, 0, D); append_right(2, 0, k); append_and(2, 2, D); fminmax(1,2,k); append_move(0,N); return; } vector<bitset<B>> r(M); void append_move(int t, int y){ r[t] = r[y]; } void append_store(int t, vector<bool> v){ for (int i = 0; i < B; ++i) r[t][i] = v[i]; } void append_and(int t, int x, int y){ r[t] = (r[x]&r[y]); } void append_or(int t, int x, int y){ r[t] = (r[x]|r[y]); } void append_xor(int t, int x, int y){ r[t] = (r[x]^r[y]); } void append_not(int t, int x){ r[t] = (~r[x]); } void append_left(int t, int x, int p){ r[t] = (r[x]<<p); } void append_right(int t, int x, int p){ r[t] = (r[x]>>p); } void append_add(int t, int x, int y){ bitset<B> tmp; bool ex = 0; int cnt; for (int i = 0; i < B; ++i) { tmp[i] = (r[x][i]^r[y][i]^ex); cnt = 0; if (r[x][i]) ++cnt; if (r[y][i]) ++cnt; if (ex) ++cnt; ex = (cnt > 1); } r[t] = tmp; } void solve() { for (int i = 0; i < M; ++i) { for (int j = 0; j < B; ++j) { r[i][j] = 0; } } int n, k, x; cin >> n >> k; for (int i = 0; i < n; ++i) { cin >> x; for (int j = 0; j < k; ++j) if ((x>>j)&1) r[0][i*k+j] = 1; } construct_instructions(0,n,k,100); int ans = 0; for (int i = 0; i < k; ++i) { if (r[0][i]) ans |= (1<<i); } cout << ans << endl; } int32_t main(int argc, char **argv) { if (argc >= 2) { freopen(argv[1], "r", stdin); } else ios_base::sync_with_stdio(0);cin.tie(0); int t = 1; /* cin >> t; */ while(t--) solve(); } #ifdef ONPC #endif

Compilation message (stderr)

registers.cpp: In function 'void construct_instructions(int, int, int, int)':
registers.cpp:71:15: warning: unused variable 'l' [-Wunused-variable]
   71 |     int i, j, l;
      |               ^
registers.cpp: In function 'int32_t main(int, char**)':
registers.cpp:197:7: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
  197 |     } else
      |       ^~~~
registers.cpp:198:38: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'else'
  198 |         ios_base::sync_with_stdio(0);cin.tie(0);
      |                                      ^~~
registers.cpp:196:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  196 |         freopen(argv[1], "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccSfivN1.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccj6mOj2.o:registers.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccSfivN1.o: in function `append_store(int, std::vector<bool, std::allocator<bool> >)':
grader.cpp:(.text+0x2a0): multiple definition of `append_store(int, std::vector<bool, std::allocator<bool> >)'; /tmp/ccj6mOj2.o:registers.cpp:(.text+0xe0): first defined here
/usr/bin/ld: /tmp/ccSfivN1.o: in function `append_not(int, int)':
grader.cpp:(.text+0x5c0): multiple definition of `append_not(int, int)'; /tmp/ccj6mOj2.o:registers.cpp:(.text+0x7d0): first defined here
/usr/bin/ld: /tmp/ccSfivN1.o: in function `append_move(int, int)':
grader.cpp:(.text+0x790): multiple definition of `append_move(int, int)'; /tmp/ccj6mOj2.o:registers.cpp:(.text+0x0): first defined here
/usr/bin/ld: /tmp/ccSfivN1.o: in function `append_or(int, int, int)':
grader.cpp:(.text+0x960): multiple definition of `append_or(int, int, int)'; /tmp/ccj6mOj2.o:registers.cpp:(.text+0x370): first defined here
/usr/bin/ld: /tmp/ccSfivN1.o: in function `append_add(int, int, int)':
grader.cpp:(.text+0xb60): multiple definition of `append_add(int, int, int)'; /tmp/ccj6mOj2.o:registers.cpp:(.text+0x1110): first defined here
/usr/bin/ld: /tmp/ccSfivN1.o: in function `append_xor(int, int, int)':
grader.cpp:(.text+0xd60): multiple definition of `append_xor(int, int, int)'; /tmp/ccj6mOj2.o:registers.cpp:(.text+0x5a0): first defined here
/usr/bin/ld: /tmp/ccSfivN1.o: in function `append_and(int, int, int)':
grader.cpp:(.text+0xf60): multiple definition of `append_and(int, int, int)'; /tmp/ccj6mOj2.o:registers.cpp:(.text+0x140): first defined here
/usr/bin/ld: /tmp/ccSfivN1.o: in function `append_left(int, int, int)':
grader.cpp:(.text+0x1160): multiple definition of `append_left(int, int, int)'; /tmp/ccj6mOj2.o:registers.cpp:(.text+0xa30): first defined here
/usr/bin/ld: /tmp/ccSfivN1.o: in function `append_right(int, int, int)':
grader.cpp:(.text+0x1360): multiple definition of `append_right(int, int, int)'; /tmp/ccj6mOj2.o:registers.cpp:(.text+0xdb0): first defined here
collect2: error: ld returned 1 exit status