結果
| 問題 |
No.330 Eigenvalue Decomposition
|
| コンテスト | |
| ユーザー |
rickytheta
|
| 提出日時 | 2015-12-23 12:58:41 |
| 言語 | C90 (gcc 12.3.0) |
| 結果 |
AC
|
| 実行時間 | 67 ms / 5,000 ms |
| コード長 | 265 bytes |
| コンパイル時間 | 109 ms |
| コンパイル使用メモリ | 21,632 KB |
| 実行使用メモリ | 6,948 KB |
| 最終ジャッジ日時 | 2024-09-18 21:43:22 |
| 合計ジャッジ時間 | 1,922 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 5 |
| other | AC * 31 |
コンパイルメッセージ
main.c:2:1: warning: data definition has no type or storage class
2 | d[100010],i;
| ^
main.c:2:1: warning: type defaults to ‘int’ in declaration of ‘d’ [-Wimplicit-int]
main.c:2:11: warning: type defaults to ‘int’ in declaration of ‘i’ [-Wimplicit-int]
2 | d[100010],i;
| ^
main.c:3:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
3 | r(x){
| ^
main.c: In function ‘r’:
main.c:3:1: warning: type of ‘x’ defaults to ‘int’ [-Wimplicit-int]
main.c: At top level:
main.c:6:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
6 | main(n,m,a,b,c){
| ^~~~
main.c: In function ‘main’:
main.c:6:1: warning: type of ‘n’ defaults to ‘int’ [-Wimplicit-int]
main.c:6:1: warning: type of ‘m’ defaults to ‘int’ [-Wimplicit-int]
main.c:6:1: warning: type of ‘a’ defaults to ‘int’ [-Wimplicit-int]
main.c:6:1: warning: type of ‘b’ defaults to ‘int’ [-Wimplicit-int]
main.c:6:1: warning: type of ‘c’ defaults to ‘int’ [-Wimplicit-int]
main.c:7:3: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
7 | scanf("%d%d",&n,&m);
| ^~~~~~~~~~~~~~~~~~~
main.c:10:5: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
10 | scanf("%d%d%d",&a,&b,&c);
| ^~~~~~~~~~~~~~~~~~~~~~~~
ソースコード
#include <stdio.h>
d[100010],i;
r(x){
return d[x]<0?x:(d[x]=r(d[x]));
}
main(n,m,a,b,c){
scanf("%d%d",&n,&m);
for(i=n;i--;)d[i]=-1;
for(;m--;){
scanf("%d%d%d",&a,&b,&c);
a=r(a-1);b=r(b-1);
if(a-b)d[a]+=d[b],d[b]=a,--n;
}
printf("%d\n",n);
}
rickytheta