OJ-Problems-Source/OpenJudge/ch0202_冰封/1750.c

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2016-07-06 14:15:22 +08:00
#include <stdio.h>
#include <string.h>
char a[10000];
char mark[10000];
void dfs(int idx, char b[10000]) {
int i;
if(idx >= strlen(a)) {
printf("%s\n", b);
return ;
}
for(i = 0; i < strlen(a); i++) {
if(!mark[i]) {
mark[i] = 1;
b[idx] = a[i];
dfs(idx + 1, b);
mark[i] = 0;
}
}
}
int main(int argc, char** argv) {
scanf("%s", a);
char b[10000];
memset(b, 0, 10000);
dfs(0, b);
return 0;
}