Compilare: main.cpp: In function 'void read()': main.cpp:32:9: warning: unused variable 'a' [-Wunused-variable] int a = comp(5,5); ^ main.cpp:33:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&teste); ^ main.cpp:36:39: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%ld%ld%ld",&n,&m,&x); ^ main.cpp:42:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%ld",&nr); ^