Compilare: main.cpp: In function 'int main()': main.cpp:26:18: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[10000005]' [-Wformat=] scanf("%s",&s); ^ main.cpp:29:25: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[22]' [-Wformat=] while (scanf("%s",&a)==1) { ^ main.cpp:22:11: warning: unused variable 'j' [-Wunused-variable] int i,j,x=0; ^ main.cpp:23:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("abc2.in","r",stdin); ^ main.cpp:24:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("abc2.out","w",stdout); ^ main.cpp:26:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s",&s); ^