36 lines
1.0 KiB
C++
36 lines
1.0 KiB
C++
#include <cstdio>
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#include <algorithm>
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#include <cstring>
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#include <cmath>
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using namespace std;
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const int MAXN = 55;
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const int INF = 0x3f3f3f3f;
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char s[MAXN][MAXN];
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bool vis[MAXN][MAXN];
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int n, m;
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int main(void) {
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int T; scanf ("%d", &T);
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while (T--) {
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scanf ("%d", &n);
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for (int i=1; i<=n; ++i) scanf ("%s", s[i] + 1);
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memset (vis, false, sizeof (vis)); m = strlen (s[1] + 1);
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int ans = 0;
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for (int i=1; i<=n; ++i) {
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for (int j=1; j<=m; ++j) {
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if (s[i][j] == 'R' || s[i][j] == 'G') {
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if (!(s[i-1][j-1] == 'R' || s[i-1][j-1] == 'G')) ans++;
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}
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}
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}
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for (int i=1; i<=n; ++i) {
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for (int j=1; j<=m; ++j) {
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if (s[i][j] == 'B' || s[i][j] == 'G') {
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if (!(s[i-1][j+1] == 'B' || s[i-1][j+1] == 'G')) ans++;
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}
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}
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}
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printf ("%d\n", ans);
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}
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return 0;
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}
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