Borderou de evaluare (job #755891)

Compilare: main.cpp: In function 'int main()': main.cpp:7:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 7 | freopen("matsp.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:8:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 8 | freopen("matsp.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:29:21: warning: 'nextx' may be used uninitialized [-Wmaybe-uninitialized] 29 | if(nextx>0 && nexty>0 && nextx<=n && nexty<=n && v[nexty][nextx]==0); | ~~~~~^~ main.cpp:20:13: note: 'nextx' was declared here 20 | int nextx, nexty; | ^~~~~ main.cpp:29:32: warning: 'nexty' may be used uninitialized [-Wmaybe-uninitialized] 29 | if(nextx>0 && nexty>0 && nextx<=n && nexty<=n && v[nexty][nextx]==0); | ~~~~~^~ main.cpp:20:20: note: 'nexty' was declared here 20 | int nextx, nexty; | ^~~~~