Compilare: main.cpp: In function 'void dijkstra(int)': main.cpp:99:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < v[p].edges[node].size(); j++){ ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:100:17: warning: unused variable 'P' [-Wunused-variable] int P = v[p].edges[node][j].x; ^ main.cpp:101:17: warning: unused variable 'C' [-Wunused-variable] int C = v[p].edges[node][j].cost; ^ main.cpp:84:20: warning: unused variable 'nrNodes' [-Wunused-variable] int Min, node, nrNodes = 0; ^~~~~~~ main.cpp: In function 'int main()': main.cpp:129:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("distante.out", "w", stdout); ^ main.cpp: In function 'void Read(int&)': main.cpp:32:42: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(f, MAX, 1, IN), pos = 0; ^ main.cpp:37:42: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(f, MAX, 1, IN), pos = 0; ^