Compilare: user.cpp: In function ‘int main()’: user.cpp:70:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < sortare[i].size(); j++) ^ user.cpp:97:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < muchii[x].size(); j++) ^ user.cpp:119:56: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < sortare[l].size(); j++) ^ user.cpp:137:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < muchii[x].size(); j++) ^ user.cpp:146:56: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < sortare[l].size(); j++) ^ user.cpp:159:56: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < sortare[l].size(); j++) ^ user.cpp:49:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&m); ^ user.cpp:53:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d",&x,&y,&z); ^ user.cpp:84:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&k); ^ user.cpp:88:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d",&x,&y,&z); ^