Compilare: main.cpp: In function 'int main()': main.cpp:69:7: warning: unused variable 'L' [-Wunused-variable] int L = lis(), D = lds(); ^ main.cpp:69:18: warning: unused variable 'D' [-Wunused-variable] int L = lis(), D = lds(); ^ main.cpp: In function 'int nrFroms()': main.cpp:31:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s", buf); ^ main.cpp: In function 'int main()': main.cpp:66:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^