Compilare: main.cpp: In function 'int lee(int, int)': main.cpp:30:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int lee1(int, int)': main.cpp:49:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:52:24: warning: unused variable 'l' [-Wunused-variable] int n, m, k, i, j, l, c, x1, x2, y1, y2, maxx=0, s; ^ main.cpp:52:27: warning: unused variable 'c' [-Wunused-variable] int n, m, k, i, j, l, c, x1, x2, y1, y2, maxx=0, s; ^