Submission #73392239

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Source Code Expand

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int cmp(const void* x, const void* y) {
	char a = *(const char*)x, b = *(const char*)y;
	return (a > b) - (a < b);
}

int main(void) {
	char X[16];
	int len;
	if (scanf("%15s", X) != 1) return 1;
	len = (int)strlen(X);
	qsort(X, len, sizeof(*X), cmp);
	if (X[0] == '0') {
		int i;
		char t;
		for (i = 1; X[i] == '0'; i++);
		if (i < len) {
			t = X[i];
			X[i] = X[0];
			X[0] = t;
		}
	}
	puts(X);
	return 0;
}

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