bold.cpp: In function 'int main()':
bold.cpp:14:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
14 | for(register int i = 1; i <= n; ++i){
| ^
bold.cpp:16:20: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
16 | for(register int j = 1; j <= m; ++j){
| ^
bold.cpp:22:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
22 | for(register int i = 1; i <= n; ++i){
| ^
bold.cpp:23:20: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
23 | for(register int j = 1; j <= m; ++j){
| ^