Borderou de evaluare (job #796837)

Compilare: main.cpp: In function 'void solve()': main.cpp:23:3: warning: this 'while' clause does not guard... [-Wmisleading-indentation] 23 | while(cin>>a) | ^~~~~ main.cpp:25:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while' 25 | for (string& it : C) | ^~~ main.cpp:8:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'unsigned int'} [-Wsign-compare] 8 | #define forn(i,n) for(int i=0; i<(n); ++i) | ^ main.cpp:28:7: note: in expansion of macro 'forn' 28 | forn(i, C.size()) | ^~~~ main.cpp:31:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'unsigned int'} [-Wsign-compare] 31 | while(l >= 0 && r < C.size() && C[l] == C[r]) | ~~^~~~~~~~~~ main.cpp:42:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'unsigned int'} [-Wsign-compare] 42 | while(l >= 0 && r < C.size() && C[l] == C[r]) | ~~^~~~~~~~~~ main.cpp: In function 'int32_t main()': main.cpp:58:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 58 | freopen("fraza.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:59:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 59 | freopen("fraza.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~