Compilare: main.cpp: In function 'int main()': main.cpp:32:9: warning: unused variable 'st' [-Wunused-variable] int st=1,dr=0; ^~ main.cpp:32:14: warning: unused variable 'dr' [-Wunused-variable] int st=1,dr=0; ^~ main.cpp:28:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&n,&m); ^ main.cpp:30:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&v[i]); ^ main.cpp:35:36: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&mat[i][j]); ^