Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:17:17: error: ‘s1’ was not declared in this scope s1=a[i+o][j+o-1]-a[i+o-1][j+o-1]-a[i+o][j-1]+a[i+o-1][j-1]; ^ user.cpp:18:17: error: ‘s2’ was not declared in this scope s2=a[i+o-1][j+o]-a[i+o-1][j+o-1]-a[i-1][j+o]+a[i-1][j+o-1]; ^ user.cpp:21:25: error: lvalue required as increment operand b[o]++; ^ user.cpp:30:1: error: expected ‘}’ at end of input } ^