Compilare: main.cpp: In function 'void ciur()': main.cpp:62:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=2;i<=1000005;i++) ^~~ main.cpp:69:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for(i=1;i<=1000005;++i) ^~~ main.cpp: In function 'int main()': main.cpp:76:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cntgcd.in","r",stdin); ^ main.cpp:77:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cntgcd.out","w",stdout); ^ main.cpp:79:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&n,&d); ^ main.cpp: In function 'void ciur()': main.cpp:71:18: warning: iteration 1000004 invokes undefined behavior [-Waggressive-loop-optimizations] sp[i]=p[i]+sp[i-1]; ~~~^ main.cpp:69:18: note: within this loop for(i=1;i<=1000005;++i) ~^~~~~~~~~ main.cpp:63:15: warning: iteration 1000003 invokes undefined behavior [-Waggressive-loop-optimizations] if(p[i]==i) ~~~^ main.cpp:62:14: note: within this loop for(i=2;i<=1000005;i++) ~^~~~~~~~~ main.cpp:61:13: warning: iteration 1000004 invokes undefined behavior [-Waggressive-loop-optimizations] p[i]=i; ~~~~^~ main.cpp:60:14: note: within this loop for(i=1;i<=1000005;i++) ~^~~~~~~~~