Compilare: user.cpp: In function ‘int main()’: user.cpp:35:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(sq[x] < dq[x].size() && dq[x][sq[x]] < j - fr[i] * i) ^ user.cpp:37:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(sq[x] < dq[x].size()){ ^ user.cpp:44:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(dq[x].size() > sq[x] && d[*(dq[x].end() - 1)].t + (j - (*(dq[x].end() - 1))) / i > d[j].t) ^ user.cpp:17:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d", &n, &g); ^ user.cpp:19:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &x); ^