Compilare: main.cpp: In function 'int brut(int, int)': main.cpp:68:1: warning: no return statement in function returning non-void [-Wreturn-type] 68 | } | ^ main.cpp: In function 'int find_last_13(int, int)': main.cpp:71:10: warning: unused variable 'valmin' [-Wunused-variable] 71 | int i, valmin; | ^~~~~~ main.cpp:93:1: warning: no return statement in function returning non-void [-Wreturn-type] 93 | } | ^ main.cpp: In function 'int main()': main.cpp:96:13: warning: unused variable 'i' [-Wunused-variable] 96 | int n, k, i; | ^