#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#define inbuf_len 1 << 16
#define outbuf_len 1 << 16
void Init(int N);
int CountCritical();
void Link(int a, int b);
int main() {
//freopen("/Users/timreizin/Downloads/ioi2012tests/day1/rings/input/input3.txt", "r", stdin);
int tmp;
/* Set input and output buffering */
char *inbuf, *outbuf;
inbuf = (char*) malloc(inbuf_len * sizeof(char));
outbuf = (char*) malloc(outbuf_len * sizeof(char));
tmp = setvbuf(stdin, inbuf, _IOFBF, inbuf_len);
tmp = setvbuf(stdout, outbuf, _IOFBF, outbuf_len);
int N, L;
tmp = scanf("%d %d", &N, &L);
assert(tmp == 2);
Init(N);
int i;
for (i = 0; i < L; i++) {
int A, B;
tmp = scanf("%d", &A);
if (A == -1) {
int critical;
critical = CountCritical();
printf("%d\n", critical);
} else {
tmp = scanf("%d", &B);
assert(tmp == 1);
Link(A, B);
}
}
return 0;
}
Compilation message
/usr/bin/ld: /tmp/ccNfaisY.o: in function `main':
rings.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc3ivmYW.o:grader.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/cc3ivmYW.o: in function `main':
grader.cpp:(.text.startup+0x88): undefined reference to `Init(int)'
/usr/bin/ld: grader.cpp:(.text.startup+0xca): undefined reference to `Link(int, int)'
/usr/bin/ld: grader.cpp:(.text.startup+0xed): undefined reference to `CountCritical()'
/usr/bin/ld: /tmp/ccNfaisY.o: in function `main':
rings.cpp:(.text.startup+0x88): undefined reference to `Init(int)'
/usr/bin/ld: rings.cpp:(.text.startup+0xca): undefined reference to `Link(int, int)'
/usr/bin/ld: rings.cpp:(.text.startup+0xed): undefined reference to `CountCritical()'
collect2: error: ld returned 1 exit status
