Compilare: main.cpp: In function 'void read()': main.cpp:37:21: warning: format '%c' expects argument of type 'char*', but argument 2 has type 'int' [-Wformat=] scanf("%c",x); ^ main.cpp:40:25: warning: format '%c' expects argument of type 'char*', but argument 2 has type 'int' [-Wformat=] scanf("%c",x); ^ main.cpp: In function 'void cit(int&)': main.cpp:10:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&q,&n); ^ main.cpp: In function 'void read()': main.cpp:37:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%c",x); ^ main.cpp:40:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%c",x); ^ main.cpp:37:14: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized] scanf("%c",x); ~~~~~^~~~~~~~