Compilare: main.cpp: In function 'void solve()': main.cpp:23:22: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare] 23 | for(int j=1;j<=n;j++) | ~^~~ main.cpp:25:18: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare] 25 | for(int i=0;i<n;i++) | ~^~ main.cpp:28:22: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare] 28 | for(int j=1;j<n;j++) | ~^~ main.cpp:30:30: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare] 30 | for(int x=0;x<n;x++) | ~^~ main.cpp:36:18: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare] 36 | for(int i=1;i<=n;i++) | ~^~~