Compilare: main.cpp: In function 'int main()': main.cpp:24:13: warning: unused variable 'j' [-Wunused-variable] int n, i, j, m, counter ; ^ main.cpp:25:33: 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:27:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d", &v[i]) ; ^