Compilare: main.cpp: In member function 'long long int MinCostMaxFlow::find(int, int, int)': main.cpp:61:21: warning: unused variable 'dist' [-Wunused-variable] int dist = aux.first, v = aux.second; ^~~~ main.cpp: In function 'int main()': main.cpp:134:44: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=] printf("%d", mcmf.find(0, n + m + 1, m)); ^ main.cpp:121:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("negot.in","r",stdin); ^ main.cpp:122:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("negot.out","w",stdout); ^ main.cpp:124:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &n, &m, &k); ^ main.cpp:127:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ main.cpp:129:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^