Compilare: main.cpp: In function 'int main()': main.cpp:32:17: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[6]' [-Wformat=] scanf("%s", &x); ^ main.cpp:36:17: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[6]' [-Wformat=] scanf("%s", &x); ^ main.cpp:28:6: warning: unused variable 'start' [-Wunused-variable] int start = 1; ^~~~~ main.cpp:21:32: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("tester.in","r",stdin); ^ main.cpp:22:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("tester.out","w",stdout); ^ main.cpp:26:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ main.cpp:32:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s", &x); ^ main.cpp:36:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s", &x); ^