Borderou de evaluare (job #839414)

Compilare: main.cpp: In function 'int main()': main.cpp:46:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::array<int, 3> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | while ( i < trip.size() && sum( trip[i] ) + sum( trip[j = cautB( i )] ) != s ) | ~~^~~~~~~~~~~~~ main.cpp:50:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::array<int, 3> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | fprintf( fout, i == trip.size() ? "-1\n" | ~~^~~~~~~~~~~~~~ main.cpp:34:9: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 34 | fscanf( fin, "%d%d", &n, &s ); | ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:36:11: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 36 | fscanf( fin, "%d", &v[i] ); | ~~~~~~^~~~~~~~~~~~~~~~~~~~ main.cpp:52:101: warning: 'j' may be used uninitialized [-Wmaybe-uninitialized] 52 | v[trip[i][0]], v[trip[i][1]], v[trip[i][2]], v[trip[j][0]], v[trip[j][1]], v[trip[j][2]] ); | ^ main.cpp:31:10: note: 'j' was declared here 31 | int i, j, k; | ^