結果
| 問題 | No.67 よくある棒を切る問題 (1) | 
| コンテスト | |
| ユーザー |  | 
| 提出日時 | 2017-12-28 11:21:03 | 
| 言語 | C (gcc 13.3.0) | 
| 結果 | 
                                WA
                                 
                             | 
| 実行時間 | - | 
| コード長 | 519 bytes | 
| コンパイル時間 | 281 ms | 
| コンパイル使用メモリ | 25,600 KB | 
| 実行使用メモリ | 6,824 KB | 
| 最終ジャッジ日時 | 2025-03-03 11:06:39 | 
| 合計ジャッジ時間 | 71,287 ms | 
| ジャッジサーバーID (参考情報) | judge5 / judge3 | 
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| ファイルパターン | 結果 | 
|---|---|
| other | AC * 1 WA * 29 | 
コンパイルメッセージ
main.c: In function ‘main’:
main.c:8:25: warning: format ‘%d’ expects argument of type ‘int *’, but argument 2 has type ‘long int *’ [-Wformat=]
    8 |                 scanf("%d",&L[i]);
      |                        ~^  ~~~~~
      |                         |  |
      |                         |  long int *
      |                         int *
      |                        %ld
main.c:10:17: warning: format ‘%d’ expects argument of type ‘int *’, but argument 2 has type ‘long int *’ [-Wformat=]
   10 |         scanf("%d",&K);
      |                ~^  ~~
      |                 |  |
      |                 |  long int *
      |                 int *
      |                %ld
main.c:11:9: warning: implicit declaration of function ‘solve’ [-Wimplicit-function-declaration]
   11 |         solve();
      |         ^~~~~
main.c: At top level:
main.c:25:6: warning: conflicting types for ‘solve’; have ‘void()’
   25 | void solve() {
      |      ^~~~~
main.c:11:9: note: previous implicit declaration of ‘solve’ with type ‘void()’
   11 |         solve();
      |         ^~~~~
main.c: In function ‘main’:
main.c:6:9: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    6 |         scanf("%d",&N);
      |         ^~~~~~~~~~~~~~
main.c:8:17: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    8 |                 scanf("%d",&L[i]);
      |                 ^~~~~~~~~~~~~~~~~
main.c:10:9: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   10 |         scanf("%d",&K);
      |         ^~~~~~~~~~~~~~
            
            ソースコード
#include <stdio.h>
long int K;
unsigned int N;
long int L[10000000];
int main(){
	scanf("%d",&N);
	for(int i=0;i<N;i++){
		scanf("%d",&L[i]);
	}
	scanf("%d",&K);
	solve();
}
int C(double x){
	int num = 0;
	for(int i=0;i<N;i++){
		num += (int)(L[i] / x );
	}
	if(num >= K){
		return 1;
	}else{
		return 0;
	}
}
void solve() {
	double lb =0.0;
	double ub = 1000.0;
	double k = 2.0;
	for(int i =0; i<10000; i++){
		double mid = (lb+ub)/k;
		if(C(mid) == 1){
			lb = mid;
		}else{
			ub = mid;
		}
	}
	printf("%f\n",lb);
}
            
            
            
        