Compilare: user.cpp: In function ‘int cautb(int)’: user.cpp:9:9: warning: unused variable ‘y’ [-Wunused-variable] int y, x, s, n; ^ user.cpp:9:15: warning: unused variable ‘s’ [-Wunused-variable] int y, x, s, n; ^ user.cpp: In function ‘int main()’: user.cpp:22:18: warning: unused variable ‘x’ [-Wunused-variable] int n, t, p, x, k, s, q; ^ user.cpp:22:21: warning: unused variable ‘k’ [-Wunused-variable] int n, t, p, x, k, s, q; ^ user.cpp: In function ‘int cautb(int)’: user.cpp:11:25: warning: ‘n’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(r + pas <= 2 * n && sum[r + pas] <= x){ ~~^~~ user.cpp:11:29: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(r + pas <= 2 * n && sum[r + pas] <= x){ ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:9:18: warning: ‘n’ may be used uninitialized in this function [-Wmaybe-uninitialized] int y, x, s, n; ^ user.cpp:11:29: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(r + pas <= 2 * n && sum[r + pas] <= x){ ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~ user.cpp:9:12: note: ‘x’ was declared here int y, x, s, n; ^