Compilare: user.cpp: In function ‘int main()’: user.cpp:132:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("excursie.in", "r", stdin); ^ user.cpp:133:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("excursie.out", "w", stdout); ^ user.cpp:134:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%lf", &n, &m, &lmax); ^ user.cpp:138:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lf", &v[i][j]); ^ user.cpp:140:56: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d", &startl, &startc, &stopl, &stopc); ^ user.cpp:22:15: warning: ‘distanta’ may be used uninitialized in this function [-Wmaybe-uninitialized] val[r].d=t; ^ user.cpp:114:19: note: ‘distanta’ was declared here double efort, distanta; ^ user.cpp:21:15: warning: ‘efort’ may be used uninitialized in this function [-Wmaybe-uninitialized] val[r].c=z; ^ user.cpp:114:12: note: ‘efort’ was declared here double efort, distanta; ^