Compilare: main.cpp: In function 'int main()': main.cpp:30:58: 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", &p, &m, &n, &xc, &yc, &k); ^ main.cpp:41:42: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d", &x, &y, &r); ^ main.cpp:55:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &g); ^ main.cpp:59:52: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d%d", &x1, &y1, &x2, &y2); ^ main.cpp:76:9: warning: 'rezx' may be used uninitialized in this function [-Wmaybe-uninitialized] int rezx, rezy, rezc; ^~~~