Compilare: main.cpp: In function 'void sol(long long int)': main.cpp:18:25: warning: format '%c' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=] printf("%c",'A'+j%26); ^ main.cpp: In function 'int main()': main.cpp:30:45: warning: format '%d' expects argument of type 'int*', but argument 4 has type 'long long int*' [-Wformat=] while(scanf("L%lliC%lli %d\n",&x,&y,&lin)!=EOF){ ^ main.cpp:44:27: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=] printf("%d ",s); ^ main.cpp:27:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("excel.in","r",stdin); ^ main.cpp:28:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("excel.out","w",stdout); ^