Compilare: user.cpp: In function ‘void bellmanFord()’: user.cpp:36:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = 0; k < g[from].size(); ++ k) { ^ user.cpp: In function ‘void dijkstra()’: user.cpp:63:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = 0; k < g[from].size(); ++ k) { ^ user.cpp: In function ‘int main()’: user.cpp:119:38: warning: narrowing conversion of ‘g[y].std::vector<_Tp, _Alloc>::size<Muchie, std::allocator<Muchie> >()’ from ‘std::vector<Muchie>::size_type {aka unsigned int}’ to ‘int’ inside { } [-Wnarrowing] g[x].push_back({y, g[y].size(), 0, 1, cost, i}); ^ user.cpp:120:40: warning: narrowing conversion of ‘(g[x].std::vector<_Tp, _Alloc>::size<Muchie, std::allocator<Muchie> >() + 4294967295u)’ from ‘std::vector<Muchie>::size_type {aka unsigned int}’ to ‘int’ inside { } [-Wnarrowing] g[y].push_back({x, g[x].size() - 1, 0, 0, -cost}); ^ user.cpp:124:40: warning: narrowing conversion of ‘g[i].std::vector<_Tp, _Alloc>::size<Muchie, std::allocator<Muchie> >()’ from ‘std::vector<Muchie>::size_type {aka unsigned int}’ to ‘int’ inside { } [-Wnarrowing] g[src].push_back({i, g[i].size(), 0, 1, 0}); ^ user.cpp:125:44: warning: narrowing conversion of ‘(g[src].std::vector<_Tp, _Alloc>::size<Muchie, std::allocator<Muchie> >() + 4294967295u)’ from ‘std::vector<Muchie>::size_type {aka unsigned int}’ to ‘int’ inside { } [-Wnarrowing] g[i].push_back({src, g[src].size() - 1, 0, 0, 0}); ^ user.cpp:129:48: warning: narrowing conversion of ‘g[dest].std::vector<_Tp, _Alloc>::size<Muchie, std::allocator<Muchie> >()’ from ‘std::vector<Muchie>::size_type {aka unsigned int}’ to ‘int’ inside { } [-Wnarrowing] g[i + n].push_back({dest, g[dest].size(), 0, 1, 0}); ^ user.cpp:130:47: warning: narrowing conversion of ‘(g[i].std::vector<_Tp, _Alloc>::size<Muchie, std::allocator<Muchie> >() + 4294967295u)’ from ‘std::vector<Muchie>::size_type {aka unsigned int}’ to ‘int’ inside { } [-Wnarrowing] g[dest].push_back({i + n, g[i].size() - 1, 0, 0, 0}); ^ user.cpp:139:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = 0; k < g[i].size(); ++ k) { ^ user.cpp:106:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cmcm.in", "r", stdin); ^ user.cpp:107:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cmcm.out", "w", stdout); ^ user.cpp:110:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &n, &m, &muchii); ^ user.cpp:116:39: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &x, &y, &cost); ^