Compilare: main.cpp: In function 'void ReconstructSol(int)': main.cpp:82:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<ans.size();++i) ~^~~~~~~~~~~ main.cpp:87:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<sol.size();++i) ~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:94:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("mostenire3.in","r",stdin);freopen("mostenire3.out","w",stdout); ^ main.cpp:94:76: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("mostenire3.in","r",stdin);freopen("mostenire3.out","w",stdout); ^ main.cpp:96:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&n,&k); ^ main.cpp:99:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i]); ^