Compilare: main.cpp: In function 'void afisare(numere)': main.cpp:28:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<k.rasp.size(); i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'void bfs(int, int)': main.cpp:48:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<g[start_node].size(); i++) ~^~~~~~~~~~~~~~~~~~~~~ main.cpp:62:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<g[k.rasp.back()].size(); i++) ~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:79:80: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(g[k.rasp.back()][i].first==start_node&&k.rasp.size()==2*n) ~~~~~~~~~~~~~^~~~~ main.cpp:94:77: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(g[k.rasp.back()][i].first==start_node&&k.rasp.size()==2*n) ~~~~~~~~~~~~~^~~~~ main.cpp: In function 'int main()': main.cpp:117:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("dungeon.in", "r", stdin); ^ main.cpp:118:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("dungeon.out", "w", stdout); ^ main.cpp:121:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ main.cpp:124:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ main.cpp:128:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &x, &y); ^ main.cpp:135:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &x, &y); ^ main.cpp:142:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &x, &y); ^