Submission #1752884

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Source Code Expand

#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=(a);i<=(b);i++)
#define per(i,a,b) for(int i=(a);i>=(b);i--)
#define forE(i,x) for(int i=head[x];i!=-1;i=ne[i])
using namespace std;
typedef long long i64;
typedef unsigned long long u64;
typedef unsigned u32;
typedef pair<int,int> pin;
#define mk(a,b) make_pair(a,b)
#define lowbit(x) ((x)&(-(x)))
#define sqr(a) ((a)*(a))
#define clr(a) (memset((a),0,sizeof(a)))
#define ls ((x)<<1)
#define rs (((x)<<1)|1)
#define mid (((l)+(r))>>1)
#define pb push_back
#define w1 first
#define w2 second
inline void read(int &x){
	x=0;int f=1;char ch=getchar();
	while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}
	while(ch>='0'&&ch<='9'){x=x*10+ch-'0';ch=getchar();}
	x*=f;
}
inline void judge(){
	freopen("in.txt","r",stdin);
	freopen("out.txt","w",stdout);
}
/*******************************head*******************************/
const int maxn=205;
struct Point{
	int x,y;
	inline Point(int _x,int _y){x=_x;y=_y;}
	inline Point(){}
	inline void init(){
		read(x);read(y);
	}
}p[maxn];
inline Point operator + (const Point &a,const Point &b){
	return Point(a.x+b.x,a.y+b.y);
}
inline Point operator - (const Point &a,const Point &b){
	return Point(a.x-b.x,a.y-b.y);
}
inline int cross(const Point &a,const Point &b){
	return a.x*b.y-a.y*b.x;
}
int n;
const int mod=998244353;
int main(){
	read(n);
	rep(i,1,n)p[i].init();
	i64 ans=1;
	rep(i,1,n)ans=2ll*ans%mod;
	ans=(ans-n+mod)%mod;
	ans=(ans-1+mod)%mod;
	rep(i,1,n)rep(j,1,i-1){
		int sub=1;
		rep(k,1,j-1){
			if(cross(p[k]-p[i],p[j]-p[i])==0)sub=2*sub%mod;
		}
		ans=(ans-sub+mod)%mod;
	}
	printf("%d\n",ans);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:65:19: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘i64 {aka long long int}’ [-Wformat=]
  printf("%d\n",ans);
                   ^

Judge Result