제출 #49989

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런타임 에러 (RTE)
stderr:
 Exception in thread "main" java.lang.NullPointerException: Cannot invoke "String.length()" because "str" is null
	at java.base/java.util.StringTokenizer.<init>(StringTokenizer.java:197)
	at java.base/java.util.StringTokenizer.<init>(StringTokenizer.java:234)
	at Main.main(Main.java:24)

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런타임 에러 (RTE)
stderr:
 Exception in thread "main" java.lang.NullPointerException: Cannot invoke "String.length()" because "str" is null
	at java.base/java.util.StringTokenizer.<init>(StringTokenizer.java:197)
	at java.base/java.util.StringTokenizer.<init>(StringTokenizer.java:234)
	at Main.main(Main.java:24)

1

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런타임 에러 (RTE)
stderr:
 Exception in thread "main" java.lang.NullPointerException: Cannot invoke "String.length()" because "str" is null
	at java.base/java.util.StringTokenizer.<init>(StringTokenizer.java:197)
	at java.base/java.util.StringTokenizer.<init>(StringTokenizer.java:234)
	at Main.main(Main.java:24)

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