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53 | #pragma warning(disable:4996)
#include <stdio.h>
int main() {
int num;
int line;
int dividend,divisor;
scanf("%d",&num);
for (line = 1; line < num; line++) {
if(num-line < 0)
break;
num = num - line;
}
// line+1 = 분모+분자
if(line % 2 == 0){
dividend = num;
divisor = line + 1 - dividend;
}
else if (line % 2 != 0) {
divisor = num;
dividend = line + 1 - divisor;
}
printf("%d/%d\n",dividend,divisor);
return 0;
}
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