Eroare de compilare: main.cpp: In function 'int main()': main.cpp:160:5: error: 'll' was not declared in this scope ll s = 0 , b = 0; ^~ main.cpp:168:9: error: 's' was not declared in this scope s += x [i] * y [i + 1] - x [i + 1] * y [i]; ^ main.cpp:172:5: error: 's' was not declared in this scope s=s/2; ^ main.cpp:186:13: error: 'b' was not declared in this scope b += l2; ^ main.cpp:190:13: error: 'b' was not declared in this scope b += l1; ^ main.cpp:194:13: error: 'b' was not declared in this scope b += cmmdc (l1 , l2); ^ main.cpp:198:5: error: 'b' was not declared in this scope b =b/2; ^ Non zero exit status: 1