Compilare: main.cpp: In function 'int main()': main.cpp:14:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d\n" ,&n ,&m); ^ main.cpp:61:10: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized] qc[1]=y; ~~~~~^~ main.cpp:60:10: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized] ql[1]=x; ~~~~~^~ main.cpp:46:10: warning: 'b' may be used uninitialized in this function [-Wmaybe-uninitialized] qc[1]=b; ~~~~~^~ main.cpp:45:10: warning: 'a' may be used uninitialized in this function [-Wmaybe-uninitialized] ql[1]=a; ~~~~~^~