Compilare: user.cpp: In function ‘int main()’: user.cpp:51:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < s1.size(); i++)fprintf(B,"%d ", s1.at(i)); ^ user.cpp:54:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < s2.size(); i++)fprintf(B, "%d ", s2.at(i)); ^ user.cpp:78:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < s1.size(); i++)fprintf(B, "%d ", s1.at(i)); ^ user.cpp:81:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < s2.size(); i++)fprintf(B, "%d ", s2.at(i)); ^ user.cpp:11:7: warning: unused variable ‘sir’ [-Wunused-variable] char sir[3]; ^ user.cpp:12:16: warning: unused variable ‘k’ [-Wunused-variable] int teste,i,j,k,l,nr,cnr,count1=0,count2=0,corect=0; ^ user.cpp:12:18: warning: unused variable ‘l’ [-Wunused-variable] int teste,i,j,k,l,nr,cnr,count1=0,count2=0,corect=0; ^ user.cpp:17:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(A, "%d", &teste); ^ user.cpp:20:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(A, "%d",&nr); ^ user.cpp:36:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(A, "%c", &c); ^ user.cpp:40:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(A, "%c", &c); ^ user.cpp:63:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(A, "%c", &c); ^ user.cpp:67:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(A, "%c", &c); ^