Compilare: user.cpp: In function 'long int solve(long int, long int, long int, long int)': user.cpp:44: warning: unused variable 'ret' user.cpp: In function 'int main()': user.cpp:72: warning: format '%d' expects type 'int*', but argument 2 has type 'long int*' user.cpp:73: warning: format '%d' expects type 'int*', but argument 2 has type 'long int*' user.cpp:74: warning: format '%d' expects type 'int*', but argument 2 has type 'long int*' user.cpp:79: warning: format '%d' expects type 'int*', but argument 2 has type 'long int*' user.cpp:79: warning: format '%d' expects type 'int*', but argument 3 has type 'long int*' user.cpp:82: warning: format '%d' expects type 'int', but argument 2 has type 'long int' user.cpp:78: warning: unused variable 'a1' user.cpp: In function 'long int solve(long int, long int, long int, long int)': user.cpp:67: warning: control reaches end of non-void function