結果
問題 | No.7 プライムナンバーゲーム |
ユーザー |
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提出日時 | 2015-06-20 02:45:32 |
言語 | C90 (gcc 12.3.0) |
結果 |
AC
|
実行時間 | 45 ms / 5,000 ms |
コード長 | 2,063 bytes |
コンパイル時間 | 216 ms |
コンパイル使用メモリ | 22,528 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-10-01 15:33:33 |
合計ジャッジ時間 | 1,117 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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ファイルパターン | 結果 |
---|---|
other | AC * 17 |
コンパイルメッセージ
main.c: In function ‘player1’: main.c:46:16: warning: implicit declaration of function ‘player2’; did you mean ‘player1’? [-Wimplicit-function-declaration] 46 | rc = player2(N - Pr[i]); | ^~~~~~~ | player1 main.c: In function ‘main’: main.c:103:3: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 103 | scanf("%d", &N); | ^~~~~~~~~~~~~~~
ソースコード
#include <stdio.h> #include <stdlib.h> int Pr_end = 0; int *Pr = 0; int pr_gen(int N) { int i, j; char *chk = (char*)malloc(sizeof(char)*(N+1)); for (i=0; i<=N; i++) chk[i] = 1; chk[0] = 0; chk[1] = 0; for (i=2; i<=N; i++) { if (chk[i] == 1) { for (j=i*2; j<=N; j+=i) chk[j] = 0; Pr_end++; } } Pr = (int*)malloc(sizeof(int)*Pr_end); Pr_end = 0; for (i=0; i<=N; i++) { if (chk[i] == 1) { Pr[Pr_end] = i; Pr_end++; } } free(chk); chk = 0; return 0; } char *Play1 = 0; char *Play2 = 0; int player1(int N) { int rc = 0; // (rc = 1 -> win) (rc = -1 -> lose) if (Play1[N] != 0) { rc = Play1[N]; } else { if (N == 0 || N == 1) { rc = 1; } else { int i; int win = 0; int lose = 0; for (i=0; i<Pr_end; i++) { if (N - Pr[i] >= 0) { rc = player2(N - Pr[i]); if (rc == 1) { win++; } else { lose++; } } else { break; } } if (lose >= 1) { rc = 1; } else { rc = -1; } } Play1[N] = rc; } return rc; } int player2(int N) { int rc = 0; if (Play2[N] != 0) { rc = Play2[N]; } else { if (N == 0 || N == 1) { rc = 1; } else { int i; int win = 0; int lose = 0; for (i=0; i<Pr_end; i++) { if (N - Pr[i] >= 0) { rc = player1(N - Pr[i]); if (rc == 1) { win++; } else { lose++; } } else { break; } } if (lose >= 1) { rc = 1; } else { rc = -1; } } Play2[N] = rc; } return rc; } int main() { int N; scanf("%d", &N); pr_gen(N); Play1 = (char*)malloc(sizeof(char)*(N+1)); Play2 = (char*)malloc(sizeof(char)*(N+1)); int i; for (i=0; i<(N+1); i++) Play1[i] = 0; for (i=0; i<(N+1); i++) Play2[i] = 0; int rc = player1(N); if (rc == 1) { printf("Win\n"); } else { printf("Lose\n"); } return 0; }