結果
問題 | No.2252 Find Zero |
ユーザー |
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提出日時 | 2023-03-24 23:33:52 |
言語 | C90 (gcc 12.3.0) |
結果 |
AC
|
実行時間 | 61 ms / 2,000 ms |
コード長 | 271 bytes |
コンパイル時間 | 737 ms |
コンパイル使用メモリ | 20,352 KB |
実行使用メモリ | 25,580 KB |
平均クエリ数 | 195.33 |
最終ジャッジ日時 | 2024-09-18 17:41:17 |
合計ジャッジ時間 | 2,066 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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ファイルパターン | 結果 |
---|---|
other | AC * 18 |
コンパイルメッセージ
main.c:2:1: warning: return type defaults to ‘int’ [-Wimplicit-int] 2 | main(){ | ^~~~ main.c: In function ‘main’: main.c:4:9: warning: implicit declaration of function ‘scanf’ [-Wimplicit-function-declaration] 4 | scanf("%d",&n); | ^~~~~ main.c:1:1: note: include ‘<stdio.h>’ or provide a declaration of ‘scanf’ +++ |+#include <stdio.h> 1 | extern void*stdout; main.c:4:9: warning: incompatible implicit declaration of built-in function ‘scanf’ [-Wbuiltin-declaration-mismatch] 4 | scanf("%d",&n); | ^~~~~ main.c:4:9: note: include ‘<stdio.h>’ or provide a declaration of ‘scanf’ main.c:6:17: warning: implicit declaration of function ‘printf’ [-Wimplicit-function-declaration] 6 | printf("? %d %d\n",i,i+1); | ^~~~~~ main.c:6:17: note: include ‘<stdio.h>’ or provide a declaration of ‘printf’ main.c:6:17: warning: incompatible implicit declaration of built-in function ‘printf’ [-Wbuiltin-declaration-mismatch] main.c:6:17: note: include ‘<stdio.h>’ or provide a declaration of ‘printf’ main.c:8:9: warning: implicit declaration of function ‘fflush’ [-Wimplicit-function-declaration] 8 | fflush(stdout); | ^~~~~~ main.c:20:9: warning: incompatible implicit declaration of built-in function ‘printf’ [-Wbuiltin-declaration-mismatch] 20 | printf("! %d\n",a); | ^~~~~~ main.c:20:9: note: include ‘<stdio.h>’ or provide a declaration of ‘printf’
ソースコード
extern void*stdout; main(){ int n; scanf("%d",&n); for(int i=n;i-=2,i>=0;){ printf("? %d %d\n",i,i+1); } fflush(stdout); int a=0; for(int i=n;i-=2,i>=0;){ int z=0; scanf("%d",&z); if(z==i){ a=i+1; } if(z==i+1){ a=i; } } printf("! %d\n",a); }