結果

問題 No.108 トリプルカードコンプ
ユーザー ciel
提出日時 2024-09-13 09:59:13
言語 C90
(gcc 12.3.0)
結果
AC  
実行時間 11 ms / 5,000 ms
コード長 428 bytes
コンパイル時間 508 ms
コンパイル使用メモリ 21,504 KB
実行使用メモリ 6,948 KB
最終ジャッジ日時 2024-09-13 09:59:14
合計ジャッジ時間 1,335 ms
ジャッジサーバーID
(参考情報)
judge5 / judge1
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 20
権限があれば一括ダウンロードができます
コンパイルメッセージ
main.c:1:1: warning: data definition has no type or storage class
    1 | N;
      | ^
main.c:1:1: warning: type defaults to ‘int’ in declaration of ‘N’ [-Wimplicit-int]
main.c: In function ‘main’:
main.c:12:13: warning: implicit declaration of function ‘scanf’ [-Wimplicit-function-declaration]
   12 |         for(scanf("%d",&N);i++<N;){
      |             ^~~~~
main.c:1:1: note: include ‘<stdio.h>’ or provide a declaration of ‘scanf’
  +++ |+#include <stdio.h>
    1 | N;
main.c:12:13: warning: incompatible implicit declaration of built-in function ‘scanf’ [-Wbuiltin-declaration-mismatch]
   12 |         for(scanf("%d",&N);i++<N;){
      |             ^~~~~
main.c:12:13: note: include ‘<stdio.h>’ or provide a declaration of ‘scanf’
main.c:18:12: warning: implicit declaration of function ‘printf’ [-Wimplicit-function-declaration]
   18 |         N=!printf("%f\n",dfs(a,b,c));
      |            ^~~~~~
main.c:18:12: note: include ‘<stdio.h>’ or provide a declaration of ‘printf’
main.c:18:12: warning: incompatible implicit declaration of built-in function ‘printf’ [-Wbuiltin-declaration-mismatch]
main.c:18:12: note: include ‘<stdio.h>’ or provide a declaration of ‘printf’

ソースコード

diff #
プレゼンテーションモードにする

N;
double memo[101][101][101];
double dfs(int a,int b,int c){
if(!a&&!b&&!c)return 0;
if(a<0||b<0||c<0)return 0;
if(memo[a][b][c]>0)return memo[a][b][c];
double s=a+b+c;
return memo[a][b][c]=N/s + dfs(a,b,c-1)*c/s + dfs(a,b-1,c+1)*b/s + dfs(a-1,b+1,c)*a/s;
}
int main(){
int a=0,b=0,c=0,i=0,x;
for(scanf("%d",&N);i++<N;){
scanf("%d",&x);
if(x==0)a++;
if(x==1)b++;
if(x==2)c++;
}
N=!printf("%f\n",dfs(a,b,c));
}
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