Compilare: main.cpp: In function 'void df(int)': main.cpp:59:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 59 | for (auto [y,c]:v[x]){ | ^ main.cpp: At global scope: main.cpp:66:11: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts' 66 | void merj(auto &a, auto b, int c){ | ^~~~ main.cpp:66:20: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts' 66 | void merj(auto &a, auto b, int c){ | ^~~~ main.cpp: In function 'void merj(auto:1&, auto:2, int)': main.cpp:67:11: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 67 | auto &[amx1, amx2]=a; | ^ main.cpp:68:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 68 | auto [bmx1, bmx2]=b; | ^ main.cpp: In function 'void find_maxs(int)': main.cpp:77:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 77 | for (auto [y,c]:v[x]){ | ^ main.cpp: In function 'void find_maxs2(int)': main.cpp:86:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 86 | for (auto [y,c]:v[x]){ | ^ main.cpp:88:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 88 | auto &[d,u]=mx[y]; | ^ main.cpp: In function 'void du(int, long long int, int)': main.cpp:108:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 108 | auto [d,u]=mx[y]; | ^ main.cpp:111:9: warning: unused variable 'distd' [-Wunused-variable] 111 | ll &distd=mp[d].F; | ^~~~~ main.cpp:112:9: warning: unused variable 'distu' [-Wunused-variable] 112 | ll &distu=mp[u].F; | ^~~~~ main.cpp: In function 'void dfs(int)': main.cpp:128:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 128 | for (auto [y,c]:v[x]){ | ^ main.cpp: In function 'void build_set()': main.cpp:136:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 136 | for (auto [dist,y]:V){ | ^ main.cpp:142:22: warning: comparison of integer expressions of different signedness: 'std::set<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare] 142 | while(s[0].size()!=k){ | ~~~~~~~~~~~^~~