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

#define SUM_MAX 100

int main(int argc, char *argv[]) {
        int n, i, sum, checksum;
        int check[SUM_MAX];

        n=i=sum=checksum=0;

        for(i=0; i<SUM_MAX; i++) {
                check[i] = i+1;
        }

        sleep(1);
        srand(time(NULL)) ;

        while(1) {
                n = rand()%SUM_MAX + 1;

                if((n > 0) && (n < SUM_MAX+1)) {
                        if(check[n-1]>0)
                                sum += n;
                                check[n-1] = 0;

                                checksum = 0;
                                for(i=0; i<SUM_MAX; i++) {
                                        checksum += check[i];
                                }
                                if(checksum==0)
                                        break;
                }
        }

        printf(\"result : %d\\n\",sum);

        return 0;
}
http://gall.dcinside.com/list.php?id=programming&no=241165

나도 여기 넣어줘어어ㅓ
http://gall.dcinside.com/list.php?id=programming&no=175518

ㅇㅇㅃ훃한테 말해야 하나?
ㅇㅇㅃ어디써 ㅇㅇㅃ