Compilare: user.cpp: In function ‘void parcurgere(int, int)’: user.cpp:47:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j<line[i].size() && line[i][j+1]==line[i][j]+1 && seen[i][j+1]==0){ ^ user.cpp: In function ‘int main()’: user.cpp:117:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<line[i].size();j++){ ^ user.cpp:100:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d", &n, &k); ^ user.cpp:103:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d", &x, &y); ^