Compilare: user.cpp: In function ‘bool setValue(int, int, int, int, int, std::vector<std::pair<int, int> >&)’: user.cpp:42:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<temp0.size();j++) ^ user.cpp:44:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<temp1.size();j++) ^ user.cpp: In function ‘int main()’: user.cpp:93:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<order.size();i++) ^ user.cpp:58:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("tower8.in","r",stdin); ^ user.cpp:59:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("tower8.out","w",stdout); ^ user.cpp:61:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:64:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&a[i][j]); ^