Submission #228879

#	Time	Username	Problem	Language	Result	Execution time	Memory
228879		blacktulip	Subway (info1cup19_subway)	C++17	17.27 / 100	1076 ms	108264 KiB

subway

#include <bits/stdc++.h>

using namespace std;

typedef long long lo;
typedef pair< lo,lo > PII;

#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define fio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define FOR for(int i=1;i<=n;i++)
#define mid ((start+end)/2)
#define ort ((bas+son)/2)

const lo MAX = -1000000000000000000;
const lo MIN = 1000000000000000000;
const lo inf = 1000000000;
const lo KOK = 100000;
const lo LOG = 30;
const lo li = 500005;
const lo mod = 1000000007;

int n,m,b[li],a[li],k,flag,t;
int cev;
string s;
vector<int> v;

int main(void){
	scanf("%d",&n);
	printf("%d\n",n+1);
	printf("0 -1\n");
	FOR{
		printf("%d 0\n",i);
	}
	return 0;
}

Compilation message (stderr)

subway.cpp: In function 'int main()':
subway.cpp:31:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~

• Subtask 1: 13.7254901961 / 20
• Subtask 2: 3.5425101215 / 30
• Subtask 3: 0 / 50