gistfile1.cpp

#include <cstdio>
#include <cstdlib>

using namespace std;

int main(int argc, char ** argv) {

  int u1;
	int u2;
	int tid;
	char s[20000];

	FILE* graph_file_pointer = fopen("username_mention_graph.txt", "r");

	while (!feof(graph_file_pointer)) {
		int err = fscanf(graph_file_pointer, "%d\t%d\t%d\t%[^\n]s", &u1, &u2, &tid, s); 
		printf("%d\t%d\t%d\t%s\n", u1, u2, tid, s);
	}

}