#569647 (C) No.944 煎っぞ!

• 問題: No.944 煎っぞ!
• ユーザー: tails
• 提出日時: 2020-10-22 21:35:17
• 言語: C (gcc 12.3.0)
• 結果: AC
• 実行時間: 4 ms / 3,000 ms
• コード長: 460 bytes
• コンパイル時間: 1,100 ms
• コンパイル使用メモリ: 30,208 KB
• 実行使用メモリ: 6,912 KB
• 最終ジャッジ日時: 2024-07-21 09:35:40
• 合計ジャッジ時間: 2,230 ms
• ジャッジサーバーID （参考情報）: judge5 / judge1

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	2 ms; 5,248 KB
testcase_01	AC	2 ms; 5,376 KB
testcase_02	AC	2 ms; 5,376 KB
testcase_03	AC	2 ms; 5,376 KB
testcase_04	AC	2 ms; 5,376 KB
testcase_05	AC	2 ms; 5,376 KB
testcase_06	AC	2 ms; 5,376 KB
testcase_07	AC	2 ms; 5,376 KB
testcase_08	AC	2 ms; 5,376 KB
testcase_09	AC	2 ms; 5,376 KB
testcase_10	AC	1 ms; 5,376 KB
testcase_11	AC	2 ms; 5,376 KB
testcase_12	AC	1 ms; 5,376 KB
testcase_13	AC	1 ms; 5,376 KB
testcase_14	AC	2 ms; 5,376 KB
testcase_15	AC	1 ms; 5,376 KB
testcase_16	AC	1 ms; 5,376 KB
testcase_17	AC	1 ms; 5,376 KB
testcase_18	AC	2 ms; 5,376 KB
testcase_19	AC	2 ms; 5,376 KB
testcase_20	AC	4 ms; 6,912 KB
testcase_21	AC	4 ms; 6,912 KB
testcase_22	AC	2 ms; 5,376 KB
testcase_23	AC	2 ms; 5,376 KB
testcase_24	AC	2 ms; 5,376 KB
testcase_25	AC	2 ms; 5,376 KB
testcase_26	AC	2 ms; 5,376 KB
testcase_27	AC	4 ms; 6,400 KB
testcase_28	AC	1 ms; 5,376 KB
testcase_29	AC	1 ms; 5,376 KB
testcase_30	AC	3 ms; 6,912 KB
testcase_31	AC	1 ms; 5,376 KB
testcase_32	AC	2 ms; 5,376 KB
testcase_33	AC	3 ms; 5,376 KB
testcase_34	AC	3 ms; 5,376 KB

コンパイルメッセージ

main.c: In function 'check':
main.c:12:9: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
   12 |         printf("%d",s/d);
      |         ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | #pragma GCC optimize("Ofast")
main.c:12:9: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
   12 |         printf("%d",s/d);
      |         ^~~~~~
main.c:12:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:13:9: warning: implicit declaration of function 'exit' [-Wimplicit-function-declaration]
   13 |         exit(0);
      |         ^~~~
main.c:1:1: note: include '<stdlib.h>' or provide a declaration of 'exit'
  +++ |+#include <stdlib.h>
    1 | #pragma GCC optimize("Ofast")
main.c:13:9: warning: incompatible implicit declaration of built-in function 'exit' [-Wbuiltin-declaration-mismatch]
   13 |         exit(0);
      |         ^~~~
main.c:13:9: note: include '<stdlib.h>' or provide a declaration of 'exit'
main.c: At top level:
main.c:16:1: warning: return type defaults to 'int' [-Wimplicit-int]
   16 | main(){
      | ^~~~
main.c: In function 'main':
main.c:17:9: warning: implicit declaration of function 'read' [-Wimplicit-function-declaration]
   17 |         read(0,rbuf,sizeof rbuf);
      |         ^~~~

ソースコード

#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")

char rbuf[500000];
char e[10000001];
int s;

void check(int d){
	for(int a=0;(a+=d)<=s;){
		if(!e[a]) return;
	}
	printf("%d",s/d);
	exit(0);
}

main(){
	read(0,rbuf,sizeof rbuf);
	char*r=rbuf;
	int c;

	int n=0;
	while(c=*r++-48,c>=0)n=n*10+c;

	while(n--){
		int a=0;
		while(c=*r++-48,c>=0)a=a*10+c;
		e[s+=a]=1;
	}

	int i;
	for(i=0;++i<=3162;){
		check(i);
	}
	for(i=s/i;;--i){
		check(s/i);
	}
}