#include <iostream>
#include <algorithm>
#include <cmath>
#include <cstring>
#include <iomanip>
#include <string>
#include <vector>
using namespace std;
int main()
{
//ios::sync_with_stdio(0);
//cin.tie(0);
int n, m;
cin >> n >> m;
int a[n+1][m+1], point = 0;
for(int y=1; y<=n; y++)
for(int x=1; x<=m; x++)
cin >> a[y][x];
bool stop = 0;
while(!stop)
{
bool s=0;
for(int y=1; y<=n; y++)
{
int last = a[y][1];
for(int x=2; x<=m; x++)
{
if(a[y][x] != -1)
{
if(a[y][x] == last)
{
point += a[y][x];
s = 1;
a[y][x] = -1, a[y][x-1] = -1;
}
last = a[y][x];
}
}
}
for(int x=1; x<=m; x++)
{
int last = a[1][x];
for(int y=2; y<=n; y++)
{
if(a[y][x] != -1)
{
if(a[y][x] == last)
{
point += a[y][x];
s = 1;
a[y][x] = -1, a[y-1][x] = -1;
}
last = a[y][x];
}
}
}
if(s == 0)
stop = 1;
}
cout << point;
return 0;
}
錯在哪