結果

問題 No.555 世界史のレポート
ユーザー 👑 testestest
提出日時 2017-09-13 12:37:59
言語 C
(gcc 13.3.0)
結果
AC  
実行時間 1 ms / 2,000 ms
コード長 225 bytes
コンパイル時間 378 ms
コンパイル使用メモリ 29,056 KB
実行使用メモリ 5,248 KB
最終ジャッジ日時 2024-11-07 19:43:20
合計ジャッジ時間 972 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge3
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ファイルパターン 結果
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,c,v;
      | ^
main.c:1:1: warning: type defaults to 'int' in declaration of 'n' [-Wimplicit-int]
main.c:1:3: warning: type defaults to 'int' in declaration of 'c' [-Wimplicit-int]
    1 | n,c,v;
      |   ^
main.c:1:5: warning: type defaults to 'int' in declaration of 'v' [-Wimplicit-int]
    1 | n,c,v;
      |     ^
main.c:2:1: warning: data definition has no type or storage class
    2 | a,b,t;
      | ^
main.c:2:1: warning: type defaults to 'int' in declaration of 'a' [-Wimplicit-int]
main.c:2:3: warning: type defaults to 'int' in declaration of 'b' [-Wimplicit-int]
    2 | a,b,t;
      |   ^
main.c:2:5: warning: type defaults to 'int' in declaration of 't' [-Wimplicit-int]
    2 | a,b,t;
      |     ^
main.c:3:1: warning: data definition has no type or storage class
    3 | ans=1e9;
      | ^~~
main.c:3:1: warning: type defaults to 'int' in declaration of 'ans' [-Wimplicit-int]
main.c:4:1: warning: return type defaults to 'int' [-Wimplicit-int]
    4 | main(){
      | ^~~~
main.c: In function 'main':
main.c:5:9: warning: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    5 |         scanf("%d%d%d",&n,&c,&v);
      |         ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | n,c,v;
main.c:5:9: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    5 |         scanf("%d%d%d",&n,&c,&v);
      |         ^~~~~
main.c:5:9: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:6:23: warning: implicit declaration of function 'log2' [-Wimplicit-function-declaration]
    6 |         for(int k=1;k<log2(n)+1;k++){
      |                       ^~~~
main.c:1:1: note: include '<math.h>' or provide a declaration of 'log2'
  +++ |+#include <math.h>
    1 | n,c,v;
main.c:6:23: warning: incompatible implicit declaration of built-in function 'log2

ソースコード

diff # 

n,c,v;
a,b,t;
ans=1e9;
main(){
	scanf("%d%d%d",&n,&c,&v);
	for(int k=1;k<log2(n)+1;k++){
		a=pow(n+1e-9,1.0/k);
		b=(log(n)-k*log(a))/(log(a+1)-log(a))+1-1e-9;
		t=(c-v)*k+v*(a*k+b);
		ans=fmin(ans,t);
	}
	printf("%d",ans);
}
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