Compilare: main.cpp: In function 'int main()': main.cpp:12:18: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[1000001]' [-Wformat=] scanf("%s",&s); ^ main.cpp:13:18: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[1000001]' [-Wformat=] scanf("%s",&s); ^ main.cpp:16:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(d.size()+n-i-1>=m&&d.front()<s[i]&&!d.empty()) d.pop_front(); ~~~~~~~~~~~~~~^~~ main.cpp:17:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(d.size()<m) ~~~~~~~~^~ main.cpp:9:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("trompeta.in","r",stdin); ^ main.cpp:10:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("trompeta.out","w",stdout); ^ main.cpp:11:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&n,&m); ^ main.cpp:12:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s",&s); ^ main.cpp:13:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s",&s); ^