제출 #584916

#제출 시각아이디문제언어결과실행 시간메모리
584916Jomnoi저울 (IOI15_scales)C++17
71.43 / 100
23 ms348 KiB
#include <bits/stdc++.h> #include "scales.h" using namespace std; const int INF = 1e9 + 7; int possible; vector <int> perm[720]; bool cantuse[720]; void init(int T) { vector <int> arr({1, 2, 3, 4, 5, 6}); int cnt = 0; do { perm[cnt] = arr; cnt++; } while(next_permutation(arr.begin(), arr.end())); } int findHeaviest(int A, int B, int C) { return max({A, B, C}); } int findLightest(int A, int B, int C) { return min({A, B, C}); } int findMedian(int A, int B, int C) { int ma = max({A, B, C}), mi = min({A, B, C}); if(A != ma and A != mi) { return A; } if(B != ma and B != mi) { return B; } if(C != ma and C != mi) { return C; } return -1; } int findNextLightest(int A, int B, int C, int D) { int upb = INF; if(A > D) { upb = min(upb, A); } if(B > D) { upb = min(upb, B); } if(C > D) { upb = min(upb, C); } if(upb == INF) { upb = min({A, B, C}); } return upb; } void orderCoins() { possible = 720; memset(cantuse, false, sizeof(cantuse)); while(possible > 1) { int optLeft = INF; int A, B, C, D, type; int tmp, remain, result; int hi, hj, hk, li, lj, lk, mi, mj, mk, nli, nlj, nlk; for(int i = 0; i < 6; i++) { for(int j = i + 1; j < 6; j++) { for(int k = j + 1; k < 6; k++) { hi = 0, hj = 0, hk = 0; li = 0, lj = 0, lk = 0; mi = 0, mj = 0, mk = 0; for(int p = 0; p < 720; p++) { if(cantuse[p] == true) { continue; } tmp = findHeaviest(perm[p][i], perm[p][j], perm[p][k]); if(tmp == perm[p][i]) { hi++; } if(tmp == perm[p][j]) { hj++; } if(tmp == perm[p][k]) { hk++; } tmp = findLightest(perm[p][i], perm[p][j], perm[p][k]); if(tmp == perm[p][i]) { li++; } if(tmp == perm[p][j]) { lj++; } if(tmp == perm[p][k]) { lk++; } tmp = findMedian(perm[p][i], perm[p][j], perm[p][k]); if(tmp == perm[p][i]) { mi++; } if(tmp == perm[p][j]) { mj++; } if(tmp == perm[p][k]) { mk++; } } remain = max({hi, hj, hk}); if(remain < optLeft) { optLeft = remain; A = i, B = j, C = k; type = 1; } remain = max({li, lj, lk}); if(remain < optLeft) { optLeft = remain; A = i, B = j, C = k; type = 2; } remain = max({mi, mj, mk}); if(remain < optLeft) { optLeft = remain; A = i, B = j, C = k; type = 3; } for(int l = 0; l < 6; l++) { if(l == i or l == j or l == k) { continue; } nli = 0, nlj = 0, nlk = 0; for(int p = 0; p < 720; p++) { if(cantuse[p] == true) { continue; } tmp = findNextLightest(perm[p][i], perm[p][j], perm[p][k], perm[p][l]); if(tmp == perm[p][i]) { nli++; } if(tmp == perm[p][j]) { nlj++; } if(tmp == perm[p][k]) { nlk++; } } remain = max({nli, nlj, nlk}); if(remain < optLeft) { optLeft = remain; A = i, B = j, C = k, D = l; type = 4; } } } } } if(type == 1) { result = getHeaviest(A + 1, B + 1, C + 1) - 1; for(int p = 0; p < 720; p++) { if(cantuse[p] == true) { continue; } if(findHeaviest(perm[p][A], perm[p][B], perm[p][C]) != perm[p][result]) { cantuse[p] = true; possible--; } } } else if(type == 2) { result = getLightest(A + 1, B + 1, C + 1) - 1; for(int p = 0; p < 720; p++) { if(cantuse[p] == true) { continue; } if(findLightest(perm[p][A], perm[p][B], perm[p][C]) != perm[p][result]) { cantuse[p] = true; possible--; } } } else if(type == 3) { result = getMedian(A + 1, B + 1, C + 1) - 1; for(int p = 0; p < 720; p++) { if(cantuse[p] == true) { continue; } if(findMedian(perm[p][A], perm[p][B], perm[p][C]) != perm[p][result]) { cantuse[p] = true; possible--; } } } else if(type == 4) { result = getNextLightest(A + 1, B + 1, C + 1, D + 1) - 1; for(int p = 0; p < 720; p++) { if(cantuse[p] == true) { continue; } if(findNextLightest(perm[p][A], perm[p][B], perm[p][C], perm[p][D]) != perm[p][result]) { cantuse[p] = true; possible--; } } } } int W[6]; for(int p = 0; p < 720; p++) { if(cantuse[p] == false) { for(int i = 0; i < 6; i++) { W[perm[p][i] - 1] = i + 1; } } } answer(W); }

컴파일 시 표준 에러 (stderr) 메시지

scales.cpp: In function 'void init(int)':
scales.cpp:11:15: warning: unused parameter 'T' [-Wunused-parameter]
   11 | void init(int T) {
      |           ~~~~^
scales.cpp: In function 'void orderCoins()':
scales.cpp:207:14: warning: 'type' may be used uninitialized in this function [-Wmaybe-uninitialized]
  207 |         else if(type == 4) {
      |              ^~
scales.cpp:214:82: warning: 'D' may be used uninitialized in this function [-Wmaybe-uninitialized]
  214 |                 if(findNextLightest(perm[p][A], perm[p][B], perm[p][C], perm[p][D]) != perm[p][result]) {
      |                                                                                  ^
scales.cpp:175:66: warning: 'C' may be used uninitialized in this function [-Wmaybe-uninitialized]
  175 |                 if(findHeaviest(perm[p][A], perm[p][B], perm[p][C]) != perm[p][result]) {
      |                                                                  ^
scales.cpp:175:54: warning: 'B' may be used uninitialized in this function [-Wmaybe-uninitialized]
  175 |                 if(findHeaviest(perm[p][A], perm[p][B], perm[p][C]) != perm[p][result]) {
      |                                                      ^
scales.cpp:175:42: warning: 'A' may be used uninitialized in this function [-Wmaybe-uninitialized]
  175 |                 if(findHeaviest(perm[p][A], perm[p][B], perm[p][C]) != perm[p][result]) {
      |                                          ^
#Verdict Execution timeMemoryGrader output
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