Compilare: main.cpp: In function 'int main()': main.cpp:14:10: warning: unused variable 'j' [-Wunused-variable] 14 | int i, j, x1, x2, n, ans, p = 1; | ^ main.cpp:14:24: warning: 'ans' may be used uninitialized [-Wmaybe-uninitialized] 14 | int i, j, x1, x2, n, ans, p = 1; | ^~~