Compilare: main.cpp: In function 'void cer2()': main.cpp:56:9: warning: unused variable 'rez' [-Wunused-variable] int rez=0; ^~~ main.cpp:57:41: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d %d",&jos, &sus, &E); ^ main.cpp: In function 'int main()': main.cpp:105:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("eq4.out","w",stdout); ^ main.cpp:106:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d\n",&cerinta); ^ main.cpp:107:23: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s\n",a); ^