Submission #3260223

---

Source Code Expand

#include <bits/stdc++.h>
#define MAXN 505
using namespace std;

struct e
{
	int a,b,c,d;
	e(){}
	e(int x,int xx,int xxx,int xxxx):a(x),b(xx),c(xxx),d(xxxx){}
	void print(){printf("%d %d %d %d\n",a,b,c,d);}
};

int n,m,h,a[MAXN][MAXN];
vector <e> p;

inline void read(int &x)
{
	x=0;char ch=getchar();bool f=false;
	while (ch<'0'||ch>'9'){if (ch=='-') f=true;ch=getchar();}
	while (ch>='0'&&ch<='9') x=(x<<3)+(x<<1)+ch-'0',ch=getchar();
	if (f) x=-x;return ;
}

int main()
{
	read(n);read(m);
	for (int i=1;i<=n;i++)
		for (int j=1;j<=m;j++)
			read(a[i][j]);
	for (int i=1;i<=n;i++)
		for (int j=1;j<m;j++)
			if (a[i][j]&1){p.push_back(e(i,j,i,j+1));--a[i][j];++a[i][j+1];}
	for (int i=1;i<n;i++)
		if (a[i][m]&1){p.push_back(e(i,m,i+1,m));--a[i][m];++a[i+1][m];}
	h=p.size();
	printf("%d\n",h);
	for (int i=0;i<h;i++) p[i].print();
	return 0;
}

Submission Info

Judge Result