Compilare: main.cpp: In function 'int solve()': main.cpp:81:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'void citire()': main.cpp:26:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ main.cpp:29:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &x, &y, &cost); ^ main.cpp: In function 'int main()': main.cpp:85:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("dbz.in", "r", stdin); ^ main.cpp:86:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("dbz.out", "w", stdout); ^