Compilare: main.cpp: In function 'int main()': main.cpp:58:73: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d%d%d%d%d%d%d%d", &p, &n, &m, &v, &xn, &xs, &yv, &ye ) ; ^ main.cpp:61:39: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d", &mat[i][j] ) ; ^