#include<stdio.h>
#include<stdlib.h>
#include<time.h>
char idir[55], odir[55];
int gcd(int a, int b){ return b ? gcd(b,a%b) : a; }
void gen_data(int tn){
sprintf(idir, "mydata/%d.in", tn);
FILE *in = fopen(idir, "wb");
int a, b;
if(tn == 20) a=9999, b=10000;
else{
a = rand()%10000+1;
while(1){
b=rand()%10000+1;
if(gcd(a,b) == 1) break;
}
}
fprintf(in, "fxcup!! %d %d %d\n", rand(), a, b);
}
void gen_out(int tn){
sprintf(odir, "mydata/%d.out", tn);
FILE *out = fopen(odir, "wb");
fprintf(out, "aW:EJFIOVLHBAIOEHGLFJAPHEOIWEGH\n");
}
int main(){
srand(time(NULL));
for(int i=1; i<=20; i++) gen_data(i), gen_out(i);
return 0;
}
Compilation message
/tmp/ccH9VnHi.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/cch7bfKt.o:ethereum.cpp:(.text.startup+0x0): first defined here
/tmp/ccH9VnHi.o: In function `main':
grader.cpp:(.text.startup+0xa9): undefined reference to `GetExchangePrice()'
collect2: error: ld returned 1 exit status
