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5601_NMbulbs.cc
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5601_NMbulbs.cc
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/*
*
* Author : fcbruce <[email protected]>
*
* Time : Sat 26 Dec 2015 07:17:35 PM CST
*
*/
#include <cstdio>
#include <iostream>
#include <sstream>
#include <cstdlib>
#include <algorithm>
#include <ctime>
#include <cctype>
#include <cmath>
#include <string>
#include <cstring>
#include <stack>
#include <queue>
#include <list>
#include <vector>
#include <map>
#include <set>
#define sqr(x) ((x)*(x))
#ifdef _WIN32
#define lld "%I64d"
#else
#define lld "%lld"
#endif
const int INF = 0x3f3f3f3f;
const long long INFLL = 0x3f3f3f3f3f3f3f3fll;
const double PI = acos(-1.0);
const double eps = 1e-10;
typedef long long LL;
typedef int itn;
const int maxn = 0;
const int maxm = 0;
int main()
{
#ifdef FCBRUCE
freopen("/home/fcbruce/code/t", "r", stdin);
#endif // FCBRUCE
int T_T;
scanf("%d", &T_T);
while (T_T--)
{
int n, m;
scanf("%d%d", &n, &m);
int total = n + m - 1;
for (int i = 0; i < n; i++) for (int j = 0; j < m; j++)
{
int v;
scanf("%d", &v);
total -= v;
}
if (total % 2 == 0) puts("YES");
else puts("NO");
}
return 0;
}