Compilare: user.cpp: In function ‘bool ver(int, int, int, int)’: user.cpp:45:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(dr[i].a<a && dr[i].b<b && dr[i].c>c && dr[i].d>d) ^ user.cpp:45:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(dr[i].a<a && dr[i].b<b && dr[i].c>c && dr[i].d>d) ^ user.cpp:45:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(dr[i].a<a && dr[i].b<b && dr[i].c>c && dr[i].d>d) ^ user.cpp:45:59: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(dr[i].a<a && dr[i].b<b && dr[i].c>c && dr[i].d>d) ^ user.cpp: In function ‘int cautare(std::vector<unsigned int>, int)’: user.cpp:76:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(vec[m]==val) ^ user.cpp:78:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(val<vec[m]) ^ user.cpp: In function ‘void generare()’: user.cpp:89:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=dr[k].na;j<dr[k].nc;j++) ^ user.cpp:90:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=dr[k].nb;i<dr[k].nd ;i++) ^ user.cpp: In function ‘int main()’: user.cpp:130:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(m>x.back()) ^ user.cpp:132:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(n>y.back()) ^ user.cpp: In function ‘void citire()’: user.cpp:55:47: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("\n%d %d %d %d", &a, &b, &c, &d); ^ user.cpp: In function ‘int main()’: user.cpp:116:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("colaj.in","r",stdin); ^ user.cpp:117:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("colaj.out","w",stdout); ^ user.cpp:118:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &p); ^ user.cpp:119:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &m,&n);