shoes.cpp: In function 'll count_swaps(std::vector<int>)':
shoes.cpp:50:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
50 | for (auto [x, y] : pairs) {
| ^
shoes.cpp:54:28: error: missing template arguments before '{' token
54 | for (int p : vector{x, y}) {
| ^
shoes.cpp:54:28: error: expected ')' before '{' token
54 | for (int p : vector{x, y}) {
| ~ ^
| )
shoes.cpp:54:29: warning: left operand of comma operator has no effect [-Wunused-value]
54 | for (int p : vector{x, y}) {
| ^
shoes.cpp:54:33: error: expected ';' before '}' token
54 | for (int p : vector{x, y}) {
| ^
| ;
shoes.cpp:54:32: warning: right operand of comma operator has no effect [-Wunused-value]
54 | for (int p : vector{x, y}) {
| ^
shoes.cpp:54:18: warning: unused variable 'p' [-Wunused-variable]
54 | for (int p : vector{x, y}) {
| ^
shoes.cpp:54:34: error: expected primary-expression before ')' token
54 | for (int p : vector{x, y}) {
| ^