Compilare: main.cpp: In function 'void lee(int, int, int)': main.cpp:28:13: warning: unused variable 'j' [-Wunused-variable] int i , j , k , cnt = 0; ^ main.cpp:28:17: warning: unused variable 'k' [-Wunused-variable] int i , j , k , cnt = 0; ^ main.cpp:28:21: warning: unused variable 'cnt' [-Wunused-variable] int i , j , k , cnt = 0; ^~~ main.cpp: In function 'int main()': main.cpp:63:59: warning: unused variable 'j' [-Wunused-variable] int m , x , y , z , xs , ys , zs , xf , yf , zf , i , j , k; ^ main.cpp:63:63: warning: unused variable 'k' [-Wunused-variable] int m , x , y , z , xs , ys , zs , xf , yf , zf , i , j , k; ^ main.cpp:61:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("traseu3.in" , "r" , stdin); ^ main.cpp:62:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("traseu3.out" , "w" , stdout); ^ main.cpp:64:76: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d%d%d%d" , &n , &m , &xs , &ys , &zs , &xf , &yf , &zf); ^ main.cpp:67:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d" , &x , &y , &z); ^