Compilare: user.cpp: In function ‘int main()’: user.cpp:20:12: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[x][y]=1; ^ user.cpp:20:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[x][y]=1; ^ user.cpp:21:12: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[y][x]=1; ^ user.cpp:21:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[y][x]=1; ^ user.cpp:30:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (a[j][h]==0 && a[h][j]==0) dp[i][j]+=dp[i-1][h]; ^ user.cpp:30:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (a[j][h]==0 && a[h][j]==0) dp[i][j]+=dp[i-1][h]; ^ user.cpp:30:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (a[j][h]==0 && a[h][j]==0) dp[i][j]+=dp[i-1][h]; ^ user.cpp:30:41: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (a[j][h]==0 && a[h][j]==0) dp[i][j]+=dp[i-1][h]; ^ user.cpp:30:54: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (a[j][h]==0 && a[h][j]==0) dp[i][j]+=dp[i-1][h]; ^ user.cpp:30:66: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (a[j][h]==0 && a[h][j]==0) dp[i][j]+=dp[i-1][h]; ^ user.cpp:31:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[i][j]%=104659; ^ user.cpp:30:27: warning: iteration 3u invokes undefined behavior [-Waggressive-loop-optimizations] if (a[j][h]==0 && a[h][j]==0) dp[i][j]+=dp[i-1][h]; ^ user.cpp:29:13: note: containing loop for (h='a'; h<='z'; h++){ ^ user.cpp:30:27: warning: iteration 3u invokes undefined behavior [-Waggressive-loop-optimizations] if (a[j][h]==0 && a[h][j]==0) dp[i][j]+=dp[i-1][h]; ^ user.cpp:28:9: note: containing loop for (j='a'; j<='z'; j++) ^