Compilare: main.cpp: In function 'long long int ad(long long int, long long int, long long int, long long int)': main.cpp:15:9: warning: unused variable 'p' [-Wunused-variable] int p=dif*t,c=dif,ca; ca=a; ^ main.cpp:15:17: warning: unused variable 'c' [-Wunused-variable] int p=dif*t,c=dif,ca; ca=a; ^ main.cpp: At global scope: main.cpp:31:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] main() ^ main.cpp: In function 'int main()': main.cpp:33:22: warning: unused variable 'j' [-Wunused-variable] int n,k,i,maxx=0,j; ^ main.cpp: In function 'long long int ad(long long int, long long int, long long int, long long int)': main.cpp:29:16: warning: 'rasp' may be used uninitialized in this function [-Wmaybe-uninitialized] return rasp*t+a; ~~~~^~