Compilare: main.cpp: In function 'int main()': main.cpp:40:27: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::deque<int>::size_type {aka long unsigned int}' [-Wformat=] printf("%d\n",r.size()); ^ main.cpp:12:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("zaharel.in","r",stdin); ^ main.cpp:13:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("zaharel.out","w",stdout); ^ main.cpp:14:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&n,&m); ^ main.cpp:18:48: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %c\n",&lin[i],&col[i],&ch); ^