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unvBell/Q3_3.c

Last active August 29, 2015 14:22
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Q3_3.c
// 入力された文字列のうち、数値だけを出力せよ
// in:S
#include <stdio.h>
int main(void) {
int c;
puts("?");
while((c = getchar()) != EOF) {
if(isdigit(c)) {
putchar(c);
}
}
return 0;
}
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