Compilare: main.cpp: In function 'int getNr()': main.cpp:46:20: warning: array subscript has type 'char' [-Wchar-subscripts] while(isDigit[c] == 0 && c != '-') ^ main.cpp:56:20: warning: array subscript has type 'char' [-Wchar-subscripts] while(isDigit[c] == 1) ^ main.cpp: In function 'int BFS()': main.cpp:121:13: warning: unused variable 'p' [-Wunused-variable] int cr, p; ^ main.cpp: In function 'int maxFlow()': main.cpp:154:9: warning: unused variable 'i' [-Wunused-variable] int i, j; ^ main.cpp:154:12: warning: unused variable 'j' [-Wunused-variable] int i, j; ^ main.cpp:155:9: warning: unused variable 'p' [-Wunused-variable] int p; ^ main.cpp: In function 'void refillBuff()': main.cpp:28:33: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, buffSize, fi); ^